Synonyms of the word

insensitive

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

callous

• adj. Emotionally hardened; unfeeling and indifferent to the suffering/feelings of others.
• adj. Having calluses.
• n. Alternative form of callus.

dead

• adj. (not comparable) No longer living.
• adj. (hyperbolic) Figuratively, not alive; lacking life.
• adj. (of another person) So hated that they are absolutely ignored.
• adj. Without emotion.
• adj. Stationary; static.
• adj. Without interest to one of the senses; dull; flat.
• adj. Unproductive.
• adj. (not comparable, of a machine, device, or electrical circuit) Completely inactive; without power; without…
• adj. (not comparable) Broken or inoperable.
• adj. (not comparable) No longer used or required.
• adj. (engineering) Not imparting motion or power.
• adj. (not comparable, sports) Not in play.
• adj. (not comparable, golf, of a golf ball) Lying so near the hole that the player is certain to hole it in…
• adj. (not comparable, baseball, slang, 1800s) Tagged out.
• adj. (not comparable) Full and complete.
• adj. (not comparable) Exact.
• adj. Experiencing pins and needles (paresthesia).
• adj. (informal) (Certain to be) in big trouble.
• adj. Constructed so as not to transmit sound; soundless.
• adj. (obsolete) Bringing death; deadly.
• adj. (law) Cut off from the rights of a citizen; deprived of the power of enjoying the rights of property.
• adv. (degree) Exactly right.
• adv. (degree) Very, absolutely, extremely, suddenly.
• adv. As if dead.
• n. (uncountable, singular only, often with "the") Time when coldness, darkness, or stillness is most intense.
• n. (plural, with "the") Those who have died.
• v. (transitive) To prevent by disabling; stop.
• v. (transitive) To make dead; to deaden; to deprive of life, force, or vigour.
• v. (Britain, transitive, slang) To kill.

deadened

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

desensitised

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

desensitized

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

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.

hard

• adj. (of material or fluid) Having a severe property; presenting difficulty.
• adj. (personal or social) Having a severe property; presenting difficulty.
• adj. Unquestionable.
• adj. (of a road intersection) Having a comparatively larger or a ninety-degree angle.
• adj. (slang, vulgar, of a male) Sexually aroused.
• adj. (bodybuilding) Having muscles that are tightened as a result of intense, regular exercise.
• adj. (phonetics, not comparable).
• adj. (art) Having a severe property; presenting a barrier to enjoyment.
• adj. (not comparable) In the form of a hard copy.
• adv. (manner) With much force or effort.
• adv. (manner) With difficulty.
• adv. (obsolete) So as to raise difficulties.
• adv. (manner) Compactly.
• adv. (now archaic) Near, close.
• n. (countable, nautical) A firm or paved beach or slope convenient for hauling vessels out of the water.
• n. (uncountable, drugs, colloquial, slang) crack cocaine.

indurate

• v. To harden or to grow hard.
• v. To make callous or unfeeling.
• v. To inure; to strengthen; to make hardy or robust.
• adj. Hardened, obstinate, unfeeling, callous.

insensible

• adj. Unable to be perceived by the senses.
• adj. Incapable or deprived of physical sensation.
• adj. Unable to be understood; unintelligible.
• adj. Not sensible or reasonable; meaningless.
• adj. Incapable of mental feeling; indifferent.
• adj. Incapable of emotional feeling; callous; apathetic.

insusceptible

• adj. Not susceptible.

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.

pachydermatous

• adj. of or relating to the pachyderms.
• adj. thick-skinned, insensitive.

soulless

• adj. insensitive or unfeeling; as if without a soul.

thick-skinned

• adj. Having a thick skin.
• adj. Not easily offended.
• adj. Insensitive to the feelings of others; callous.

tough

• adj. Strong and resilient; sturdy.
• adj. (of food) Difficult to cut or chew.
• adj. Rugged or physically hardy.
• adj. Stubborn.
• adj. (of weather etc) Harsh or severe.
• adj. Rowdy or rough.
• adj. (of questions, etc.) Difficult or demanding.
• adj. (material science) Undergoing plastic deformation before breaking.
• interj. (slang) Used to indicate lack of sympathy.
• n. A person who obtains things by force; a thug or bully.
• v. To endure.
• v. To toughen.

tough-skinned

• adj. Resilient; able to endure hardship or criticism, with no apparent adverse effects.

unaffected

• adj. Not affected or changed.
• adj. Lacking pretense or affectation; natural.
• n. Someone not affected, as by a disease.
• v. simple past tense and past participle of unaffect.

unreactive

• adj. (chemistry) Not reactive; relatively inert.
• adj. (psychology) That does not respond to a stimulation.

unresponsive

• adj. Not responsive; unreactive.
• adj. Indifferent or apathetic; emotionless.

unsusceptible

• adj. Not susceptible.