Synonyms of the word

volatile

• adj. (physics) evaporating or vaporizing readily under normal conditions.
• adj. (of a substance, informal) explosive.
• adj. (of a price etc) variable or erratic.
• adj. (of a person) quick to become angry or violent.
• adj. fickle.
• adj. temporary or ephemeral.
• adj. (of a situation) potentially violent.
• adj. (computing, of a variable) having its associated memory immediately updated with any changes in value.
• adj. (computing, of memory) whose content is lost when the computer is powered down.
• adj. (obsolete) Passing through the air on wings, or by the buoyant force of the atmosphere; flying; having…
• n. A chemical or compound that changes into a gas easily.

changeable

• adj. Capable of being changed.
• adj. Subject to sudden or frequent changes.

changeful

• adj. (rare) Changing frequently; very susceptible to change; variable; fickle.

evaporable

• adj. capable of evaporation.

explosive

• n. Explosive substance.
• adj. With the capability to, or likely to, explode.
• adj. Having the character of an explosion.
• adj. (slang) Easily driven to anger, usually with reference to a person.

fickle

• adj. Quick to change one’s opinion or allegiance; insincere; not loyal or reliable.
• adj. (figuratively) changeable.
• v. (transitive) To deceive, flatter.
• v. (transitive, Britain dialectal) To puzzle, perplex, nonplus.

inconstant

• adj. Not constant; wavering.

matter

• n. Substance, material.
• n. A condition, subject or affair, especially one of concern.
• n. An approximate amount or extent.
• n. (obsolete) The essence; the pith; the embodiment.
• n. (obsolete) Inducing cause or reason, especially of anything disagreeable or distressing.
• n. (dated) Pus.
• v. (intransitive) To be important.
• v. (transitive, obsolete outside dialects) To care about, to mind; to find important.
• v. To form pus or matter, as an abscess; to maturate.

substance

• n. Physical matter; material.
• n. The essential part of anything; the most vital part.
• n. Substantiality; solidity; firmness.
• n. Material possessions; estate; property; resources.
• n. A form of matter that has constant chemical composition and characteristic properties.
• n. Drugs (illegal narcotics).
• n. (theology) Hypostasis.

unstable

• adj. Having a strong tendency to change.
• adj. Fluctuating; not constant.
• adj. Fickle.
• adj. Unpredictable.
• adj. (chemistry) Readily decomposable.
• adj. (physics) Radioactive, especially with a short half-life.
• v. (transitive) To release (an animal) from a stable.

vaporific

• adj. (chemistry) Producing vapour; tending to pass, or to cause to pass, into vapor.

vaporizable

• adj. Capable of being vaporized.

vapourisable

• adj. (British spelling) Alternative form of vaporizable.

volatilizable

• adj. Capable of being volatilized.