Synonyms of the word

dull

• adj. Lacking the ability to cut easily; not sharp.
• adj. Boring; not exciting or interesting.
• adj. Not shiny; having a matte finish or no particular luster or brightness.
• adj. Not bright or intelligent; stupid; slow of understanding.
• adj. Sluggish, listless.
• adj. Cloudy, overcast.
• adj. Insensible; unfeeling.
• adj. Heavy; lifeless; inert.
• adj. (of pain etc) Not intense; felt indistinctly or only slightly.
• adj. (of a noise or sound) Not clear, muffled.
• v. (transitive) To render dull; to remove or blunt an edge or something that was sharp.
• v. (transitive) To soften, moderate or blunt; to make dull, stupid, or sluggish; to stupefy.
• v. (intransitive) To lose a sharp edge; to become dull.
• v. To render dim or obscure; to sully; to tarnish.

alter

• v. (transitive) To change the form or structure of.
• v. (intransitive) To become different.
• v. (transitive) To tailor clothes to make them fit.
• v. (transitive) To castrate, neuter or spay (a dog or other animal).
• v. (transitive, obsolete) To agitate; to affect mentally.

arid

• adj. Very dry.
• adj. Describing a very dry climate. Typically defined as less than 25 cm or 10 inches of rainfall annually.
• adj. Devoid of value.

benumb

• v. (transitive) To make numb, as by cold or anesthetic.
• v. (transitive) To deaden.

blunt

• adj. Having a thick edge or point; not sharp.
• adj. Dull in understanding; slow of discernment; opposed to acute.
• adj. Abrupt in address; plain; unceremonious; wanting the forms of civility; rough in manners or speech.
• adj. Hard to impress or penetrate.
• adj. Slow or deficient in feeling: insensitive.
• n. A fencer's practice foil with a soft tip.
• n. A short needle with a strong point.
• n. (smoking) A marijuana cigar.
• n. (Britain, slang, archaic, uncountable) money.
• n. A playboating move resembling a cartwheel performed on a wave.
• v. To dull the edge or point of, by making it thicker; to make blunt.
• v. (figuratively) To repress or weaken; to impair the force, keenness, or susceptibility, of.

blunted

• v. simple past tense and past participle of blunt.

boring

• n. A pit or hole which has been bored.
• n. Fragments thrown up when something is bored or drilled.
• v. present participle of bore.
• adj. Causing boredom; unable to engage or hold one's interest.

bovine

• adj. (not comparable) Of or pertaining to cattle.
• adj. (not comparable) Belonging to the family, subfamily, tribe, or genera including cows, buffalo, and bison.
• adj. Sluggish, dull, slow-witted.
• n. An animal of the family, subfamily, tribe, or genera including cattle, buffaloes and bison.

change

• v. (intransitive) To become something different.
• v. (transitive, ergative) To make something into something different.
• v. (transitive) To replace.
• v. (intransitive) To replace one's clothing.
• v. (intransitive) To transfer to another vehicle (train, bus, etc.).
• v. (archaic) To exchange.
• v. (transitive) To change hand while riding (a horse).
• n. (countable) The process of becoming different.
• n. (uncountable) Small denominations of money given in exchange for a larger denomination.
• n. (countable) A replacement, e.g. a change of clothes.
• n. (uncountable) Money given back when a customer hands over more than the exact price of an item.
• n. (uncountable) Coins (as opposed to paper money).
• n. (countable) A transfer between vehicles.
• n. (baseball) A change-up pitch.
• n. (campanology) Any order in which a number of bells are struck, other than that of the diatonic scale.
• n. (dated) A place where merchants and others meet to transact business; an exchange.
• n. (Scotland, dated) A public house; an alehouse.

cloudy

• adj. Covered with or characterised by clouds; overcast.
• adj. Not transparent or clear.
• adj. Uncertain; unclear.

colorless

• adj. American standard spelling of colourless.

colourless

• adj. Having little or no colour.
• adj. (of a liquid) Water white.
• adj. Lacking in interest or variety.

damp

• adj. Being in a state between dry and wet; moderately wet; moist.
• adj. (figuratively) despondent; dispirited, downcast.
• n. Moisture; humidity; dampness.
• n. (archaic) Fog; fogginess; vapor.
• n. (archaic) Dejection or depression.
• n. (archaic or historical, mining) A gaseous product, formed in coal mines, old wells, pits, etc.
• v. (transitive, archaic) To dampen; to render damp; to moisten; to make humid, or moderately wet.
• v. (transitive, archaic) To put out, as fire; to depress or deject; to deaden; to cloud; to check or restrain,…
• v. (transitive) To suppress vibrations (mechanical) or oscillations (electrical) by converting energy to…

dampen

• v. (transitive) To make damp or moist; to make slightly wet.
• v. (transitive) To depress; to check; to make dull; to lessen.
• v. (intransitive) To become damp; to deaden.

deadened

• v. simple past tense and past participle of deaden.

deadening

• v. present participle of deaden.
• n. A forest clearing created by girdling the trees.

dense

• adj. Having relatively high density.
• adj. Compact; crowded together.
• adj. Thick; difficult to penetrate.
• adj. Opaque; allowing little light to pass through.
• adj. Obscure, or difficult to understand.
• adj. (mathematics, topology) Being a subset of a topological space that approximates the space well. See Wikipedia…
• adj. (of a person) Slow to comprehend; of low intelligence.

desensitise

• v. Alternative spelling of desensitize.

desensitize

• v. To cause to become less sensitive or insensitive.

desiccate

• v. (transitive) to dry.
• v. (transitive) to preserve by drying.

desiccated

• v. simple past tense and past participle of desiccate.
• adj. dried.

dim

• adj. Not bright or colorful.
• adj. (colloquial) Not smart or intelligent.
• adj. Indistinct, hazy or unclear.
• adj. Disapproving, unfavorable: rarely used outside the phrase take a dim view of.
• adv. Dimly, indistinctly.
• n. (archaic) Dimness.
• v. (transitive) To make something less bright.
• v. (intransitive) To become darker.
• v. To render dim, obscure, or dark; to make less bright or distinct; to take away the luster of; to darken;…
• v. To deprive of distinct vision; to hinder from seeing clearly, either by dazzling or clouding the eyes;…

drab

• adj. Dull, uninteresting, particularly of colour.
• n. A fabric, usually of thick wool or cotton, having a drab colour.
• n. The colour of this fabric; a dun, dull grey, or or dull brownish yellow.
• n. A wooden box, used in saltworks for holding the salt when taken out of the boiling pans.
• n. (dated) A dirty or untidy woman; a slattern.
• n. (dated) A promiscuous woman, a slut; a prostitute.
• n. A box used in a saltworks for holding the salt when taken out of the boiling pans.
• v. (obsolete) To consort with prostitutes.

dreary

• adj. (obsolete) Grievous, dire; appalling.
• adj. Drab; dark, colorless, or cheerless.

dulled

• v. simple past tense and past participle of dull.

dumb

• adj. (dated) Unable to speak; lacking power of speech (kept in "deaf, dumb, and blind").
• adj. (dated) Silent; unaccompanied by words.
• adj. (informal, pejorative, especially of a person) extremely stupid.
• adj. (figuratively) Pointless, foolish, lacking intellectual content or value.
• adj. Lacking brightness or clearness, as a colour.
• v. (dated) To silence.
• v. (transitive) To make stupid.
• v. (transitive) To represent as stupid.
• v. (transitive) To reduce the intellectual demands of.

edgeless

• adj. Not having an edge, or whose boundary is unclear.
• adj. (of a blade) Not having a sharp cutting edge; blunt.

flat

• adj. Having no variations in height.
• adj. (music, voice) Without variations in pitch.
• adj. (slang) Describing certain features, usually the breasts and/or buttocks, that are extremely small or…
• adj. (music, note) Lowered by one semitone.
• adj. (music) Of a note or voice, lower in pitch than it should be.
• adj. (of a tire or other inflated object) Deflated, especially because of a puncture.
• adj. Uninteresting.
• adj. Of a carbonated drink, with all or most of its carbon dioxide having come out of solution so that the…
• adj. (wine) Lacking acidity without being sweet.
• adj. (of a battery) Unable to emit power; dead.
• adj. (juggling, of a throw) Without spin; spinless.
• adj. Lacking liveliness of commercial exchange and dealings; depressed; dull.
• adj. Absolute; downright; peremptory.
• adj. (phonetics, dated, of a consonant) sonant; vocal, as distinguished from a sharp (non-sonant) consonant.
• adj. (grammar) Not having an inflectional ending or sign, such as a noun used as an adjective, or an adjective…
• adj. (golf, of a golf club) Having a head at a very obtuse angle to the shaft.
• adj. (horticulture, of certain fruits) Flattening at the ends.
• adv. So as to be flat.
• adv. Bluntly.
• adv. (with units of time, distance, etc) Not exceeding.
• adv. Completely.
• adv. Directly; flatly.
• adv. (finance, slang) Without allowance for accrued interest.
• n. An area of level ground.
• n. (music) A note played a semitone lower than a natural, denoted by the symbol ♭ sign placed after the letter…
• n. (informal, automotive) A flat tyre/tire.
• n. (in the plural) A type of ladies' shoes with very low heels.
• n. (painting) A thin, broad brush used in oil and watercolor/watercolour painting.
• n. The flat part of something.
• n. A wide, shallow container.
• n. (mail) A large mail piece measuring at least 8 1/2 by 11 inches, such as catalogs, magazines, and unfolded…
• n. (geometry) A subset of n-dimensional space that is congruent to a Euclidean space of lower dimension.
• n. A flat-bottomed boat, without keel, and of small draught.
• n. A straw hat, broad-brimmed and low-crowned.
• n. (US) A railroad car without a roof, and whose body is a platform without sides; a platform car or flatcar.
• n. A platform on a wheel, upon which emblematic designs etc. are carried in processions.
• n. (mining) A horizontal vein or ore deposit auxiliary to a main vein; also, any horizontal portion of a…
• n. (obsolete) A dull fellow; a simpleton.
• n. (technical, theatre) A rectangular wooden structure covered with masonite, lauan, or muslin that depicts…
• v. (poker slang) To make a flat call; to call without raising.
• v. (intransitive) To become flat or flattened; to sink or fall to an even surface.
• v. (intransitive, music, colloquial) To fall from the pitch.
• v. (transitive, music) To depress in tone, as a musical note; especially, to lower in pitch by half a tone.
• v. (transitive, dated) To make flat; to flatten; to level.
• v. (transitive, dated) To render dull, insipid, or spiritless; to depress.
• n. (chiefly Britain, New England, New Zealand and Australia, archaic elsewhere) An apartment, usually on…

gray

• adj. (US) Having a color somewhere between white and black, as the ash of an ember.
• adj. (US) Dreary, gloomy.
• adj. (US) Having an indistinct, disputed or uncertain quality.
• adj. (US) Relating to older people.
• v. (US) To become gray.
• v. (US) To cause to become gray.
• v. (US, demography, slang) To turn progressively older, in the context of the population of a geographic…
• n. (US) An achromatic colour intermediate between black and white.
• n. (chiefly US, ufology) an extraterrestrial humanoid with grayish skin, bulbous black eyes, and an enlarged…
• n. (US, two-up) A penny with a tail on both sides, used for cheating.
• n. In the International System of Units, the derived unit of absorbed dose of radiation (radiation absorbed…

grey

• adj. Having a color somewhere between white and black, as the ash of an ember.
• adj. Dreary, gloomy.
• adj. Having an indistinct, disputed or uncertain quality.
• adj. Relating to older people.
• v. To become grey.
• v. To cause to become grey.
• v. (demography, slang) To turn progressively older, in the context of the population of a geographic region.
• n. An achromatic colour intermediate between black and white.
• n. (ufology) an extraterrestrial humanoid with greyish skin, bulbous black eyes, and an enlarged head.

heavy

• adj. (of a physical object) Having great weight.
• adj. (of a topic) Serious, somber.
• adj. Not easy to bear; burdensome; oppressive.
• adj. (Britain, slang, dated) Good.
• adj. (dated, late 1960s, 1970s, US) Profound.
• adj. (of a rate of flow) High, great.
• adj. (slang) Armed.
• adj. (music) Louder, more distorted.
• adj. (of weather) Hot and humid.
• adj. (of a person) Doing the specified activity more intensely than most other people.
• adj. (of food) High in fat or protein; difficult to digest.
• adj. Of great force, power, or intensity; deep or intense.
• adj. Laden to a great extent.
• adj. Laden with that which is weighty; encumbered; burdened; bowed down, either with an actual burden, or with…
• adj. Slow; sluggish; inactive; or lifeless, dull, inanimate, stupid.
• adj. Impeding motion; cloggy; clayey.
• adj. Not raised or leavened.
• adj. Having much body or strength; said of wines or spirits.
• adj. (obsolete) With child; pregnant.
• adv. heavily.
• adv. (India, colloquial) very.
• n. A villain or bad guy; the one responsible for evil or aggressive acts.
• n. (slang) A doorman, bouncer or bodyguard.
• n. (aviation) A large multi-engined aircraft.
• v. (often with "up") To make heavier.
• v. To sadden.
• v. (Australia, New Zealand, informal) To use power and/or wealth to exert influence on, e.g., governments…
• adj. Having the heaves.

ho-hum

• adj. (dated, US, Canada) Boring; not interesting or novel.
• interj. (dated, US, Canada) Used to express boredom, disinterest or lack of novelty.

humdrum

• adj. Lacking variety or excitement; dull; boring.
• n. The quality of lacking variety or excitement; dullness; monotony.

inactive

• adj. Not active, temporarily or permanently.
• adj. Not functioning or operating; broken down.
• adj. Retired from duty or service.
• adj. (chemistry) Relatively inert.
• adj. (physics) Showing no optical activity in polarized light.

insensitive

• adj. Not expressing normal physical feeling.
• adj. Not expressing normal emotional feelings; cold; tactless; undiplomatic.

irksome

• adj. Marked by irritation or annoyance; disagreeable; troublesome by reason of long continuance or repetition;…

lackluster

• adj. Lacking brilliance or intelligence.
• adj. Having no shine or lustre; dull.
• adj. Not exceptional; not worthy of special merit, attention, or interest; having no vitality.
• n. A person or thing of no particular brilliance or intelligence.

lacklustre

• adj. (British) Alternative spelling of lackluster.
• n. (British) Alternative spelling of lackluster.

leaden

• adj. (dated) Made of lead.
• adj. Pertaining to or resembling lead; heavy, grey, sluggish.
• adj. Dull; darkened with overcast.
• v. (transitive, intransitive) To make or become dull or overcast.

lusterless

• adj. Without luster, dull, not shiny, flat or matte finished.
• adj. Without brilliance, unremarkable.

lustreless

• adj. (chiefly UK) Alternative spelling of lusterless.

mat

• n. A flat piece of coarse material used for wiping one’s feet, or as a decorative or protective floor covering.
• n. A small flat piece of material used to protect a surface from anything hot or rough; a coaster.
• n. (athletics) A floor pad to protect athletes.
• n. A thickly tangled mess.
• n. A thick paper or paperboard border used to inset and center the contents of a frame.
• n. A thin layer of woven, non-woven, or knitted fiber that serves as reinforcement to a material.
• n. A thin surface layer; superficial cover.
• v. (transitive) To cover, protect or decorate with mats.
• v. (intransitive) To form a thick, tangled mess; to interweave into, or like, a mat; to entangle.
• n. (coppersmithing) An alloy of copper, tin, iron, etc.; white metal.
• n. (dated slang) Abbreviation of matinee (performance at a theater).
• n. (video games, slang) A material or component needed for a crafting recipe.

matt

• adj. (British spelling) alternative spelling of matte.
• n. Alternative spelling of mat (an alloy in coppersmithing).

matte

• n. (art, photography) A decorative border around a picture.
• n. (film) A background, often painted or created with computers.
• n. (pyrometallurgy) The molten metal sulfide phases typically formed during smelting of copper, nickel, and…
• adj. (American) Dull; not reflective of light.

matted

• v. simple past tense and past participle of mat.
• adj. forming a thick tangled mess.
• adj. covered with mats or matting.

modify

• v. (transitive) To make partial changes to.
• v. (intransitive) To be or become modified.

monotonous

• adj. Having an unvarying tone or pitch.
• adj. Tedious, repetitious or lacking in variety.

muffle

• n. Anything that mutes or deadens sound.
• n. A warm piece of clothing for the hands.
• n. (slang, archaic) A boxing glove.
• n. A kiln or furnace, often electric, with no direct flames (a muffle furnace).
• n. The bare end of the nose between the nostrils, especially in ruminants.
• v. (transitive) To wrap (a person, face etc.) in fabric or another covering, for warmth or protection; often…
• v. (transitive) To wrap up or cover (a source of noise) in order to deaden the sound.
• v. (transitive) To mute or deaden (a sound etc.).
• v. (intransitive, dated) To speak indistinctly, or without clear articulation.
• v. (transitive, dated) To prevent seeing, or hearing, or speaking, by wraps bound about the head; to blindfold;…

muffled

• v. simple past tense and past participle of muffle.
• adj. (of a sound) Stifled or covered up; diminished by interference.

mute

• adj. Not having the power of speech; dumb.
• adj. Silent; not making a sound.
• adj. Not uttered; unpronounced; silent; also, produced by complete closure of the mouth organs which interrupt…
• adj. Not giving a ringing sound when struck; said of a metal.
• n. (phonetics, now historical) A stopped consonant; a stop.
• n. (obsolete, theater) An actor who does not speak; a mime performer.
• n. A person who does not have the power of speech.
• n. A hired mourner at a funeral; an undertaker's assistant.
• n. (music) An object for dulling the sound of an instrument, especially a brass instrument, or damper for…
• v. (transitive) To silence, to make quiet.
• v. (transitive) To turn off the sound of.
• v. (now rare) Of a bird: to defecate.
• n. The faeces of a hawk or falcon.
• v. (transitive) To cast off; to moult.

muted

• v. simple past tense and past participle of mute.

nonresonant

• adj. That does not resonate.
• adj. That does not involve resonance.

numb

• adj. Without the power of sensation and motion or feeling; insensible.
• adj. Not able to react, surprised, shocked.
• adj. Causing numbness.
• v. (transitive) To cause to become numb.

obtuse

• adj. (now chiefly botany, zoology) Blunt; not sharp.
• adj. Intellectually dull or dim-witted.
• adj. Indirect or circuitous.
• adj. Of sound: deadened or muffled.
• adj. (geometry) Of an angle: greater than 90 degrees but less than 180 degrees.
• adj. (geometry) Of a triangle: with one obtuse angle.

pall

• n. (archaic) Fine cloth, especially purple cloth used for robes.
• n. (Christianity) A cloth used for various purposes on the altar in a church.
• n. (Christianity) A piece of cardboard, covered with linen and embroidered on one side, used to cover the…
• n. (Christianity) A pallium (woollen vestment in Roman Catholicism).
• n. (heraldry) A figure resembling the Roman Catholic pallium, or pall, and having the form of the letter…
• n. A heavy canvas, especially one laid over a coffin or tomb.
• n. An outer garment; a cloak or mantle.
• n. (obsolete) nausea.
• n. A feeling of gloom.
• v. To cloak.
• v. (transitive) To make vapid or insipid; to make lifeless or spiritless; to dull; to weaken.
• v. (intransitive) To become vapid, tasteless, dull, or insipid; to lose strength, life, spirit, or taste.

slow

• adj. Taking a long time to move or go a short distance, or to perform an action; not quick in motion; proceeding…
• adj. Not happening in a short time; spread over a comparatively long time.
• adj. Of reduced intellectual capacity; not quick to comprehend.
• adj. Not hasty; not precipitate; lacking in promptness; acting with deliberation.
• adj. (of a clock or the like) Behind in time; indicating a time earlier than the true time.
• adj. Lacking spirit; deficient in liveliness or briskness.
• adj. (of a period of time) Not busy; lacking activity.
• v. (transitive) To make (something) run, move, etc. less quickly; to reduce the speed of.
• v. (transitive) To keep from going quickly; to hinder the progress of.
• v. (intransitive) To become slow; to slacken in speed; to decelerate.
• n. Someone who is slow; a sluggard.
• n. (music) A slow song.
• adv. Slowly.

sluggish

• adj. Habitually idle and lazy; slothful; dull; inactive.
• adj. Slow; having little motion.
• adj. Having no power to move oneself or itself; inert.
• adj. Characteristic of a sluggard; dull; stupid; tame; simple.
• adj. Exhibiting economic decline, inactivity, slow or subnormal growth.

soft

• adj. Easily giving way under pressure.
• adj. (of cloth or similar material) Smooth and flexible; not rough, rugged, or harsh.
• adj. (of a sound) Quiet.
• adj. Gentle.
• adj. Expressing gentleness or tenderness; mild; conciliatory; courteous; kind.
• adj. Gentle in action or motion; easy.
• adj. Weak in character; impressible.
• adj. Requiring little or no effort; easy.
• adj. Not bright or intense.
• adj. Having a slight angle from straight.
• adj. (linguistics) Voiced; sonant.
• adj. (linguistics, rare) voiceless.
• adj. (linguistics, Slavic languages) palatalized.
• adj. (slang) Lacking strength or resolve, wimpy.
• adj. (of water) Low in dissolved calcium compounds.
• adj. (Britain, colloquial) Foolish.
• adj. (physics) Of a ferromagnetic material; a material that becomes essentially non magnetic when an external…
• adj. (of a person) Physically or emotionally weak.
• adj. Incomplete, or temporary; not a full action.
• adj. (Britain, of a man) Effeminate.
• adj. Agreeable to the senses.
• adj. Not harsh or offensive to the sight; not glaring or jagged; pleasing to the eye.
• interj. (archaic) Be quiet; hold; stop; not so fast.
• adv. (obsolete) Softly; without roughness or harshness; gently; quietly.
• n. A soft or foolish person; an idiot.

soften

• v. (transitive) To make something soft or softer.
• v. (transitive) To undermine the morale of someone (often soften up).
• v. (transitive) To make less harsh.
• v. (intransitive) To become soft or softer.

softened

• adj. Made soft.
• adj. (linguistics) aspirated.
• v. simple past tense and past participle of soften.

spiritless

• adj. Lacking energy, drive, motivation or emotion. Enervated.

stupid

• adj. Lacking in intelligence or exhibiting the quality of having been done by someone lacking in intelligence.
• adj. To the point of stupor.
• adj. (archaic) Characterized by or in a state of stupor; paralysed.
• adj. (archaic) Lacking sensation; inanimate; destitute of consciousness; insensate.
• adj. (slang) Amazing.
• adj. (slang) damn, annoying, darn.
• adv. (slang, dated) Extremely.
• n. A stupid person; a fool.
• n. (colloquial, uncountable) The state or condition of being stupid.

subdued

• adj. Conquered; overpowered; crushed; submissive; mild.
• adj. Not glaring in color; soft and light in tone.
• v. simple past tense and past participle of subdue.

tedious

• adj. Boring, monotonous, time consuming, wearisome.

thudding

• v. present participle of thud.
• n. A dull banging sound; a thud.

tiresome

• adj. Causing fatigue or boredom; wearisome.

unanimated

• adj. Inanimate.
• adj. Not animated; lacking vivacity.

uninteresting

• adj. Arousing little or no interest; boring or uneventful.

unpolished

• adj. Not polished; not brought to a polish.
• adj. Deprived of polish.
• adj. Not refined in manners; uncivilized; rude; plain.

unsaturated

• adj. (chemistry, of a solution) Not saturated; capable of dissolving more of a solute at the same temperature.
• adj. (chemistry) Of a compound containing atoms sharing more than one valence bond, especially of an organic…
• adj. (of a colour) Not chromatically pure; diluted.

unsharpened

• adj. Not sharpened.

weaken

• v. (transitive) To make weaker.
• v. (intransitive) To become weaker.

wearisome

• adj. Tiresome, tedious or causing fatigue.