Volatile1. (a.) Changeable; flighty; explosive; as, a volatile temper.
2. (a.) Capable of wasting away, or of easily passing into the aeriform state; subject to evaporation.
3. (a.) Fig.: Light-hearted; easily affected by circumstances; airy; lively; hence, changeable; fickle; as, a volatile temper.
4. (n.) A winged animal; wild fowl; game.
Thesaurus Entries
adrift, afloat, agitable, airy, alternating, amorphous, birdbrained, birdwitted, bouncy, brittle, bubbly, buoyant, capricious, changeable, changeful, charged, coquettish, corruptible, deciduous, desultory, deviable, dizzy, downy, dying, eccentric, edgy, effervescent, ephemeral, erratic, eruptive, ethereal, evanescent, evaporable, evaporative, expansive, explosive, faddish, fading, fast and loose, featherbrained, feathery, fickle, fitful, fleeting, flickering, flighty, flippant, flirtatious, flitting, fluctuating, fluffy, fly-by-night, flying, foamy, fragile, frail, freakish, frivolous, frothy, fugacious, fugitive, giddy, gossamery, hair-trigger, impermanent, impetuous, imponderous, impulsive, inconsistent, inconstant, indecisive, infirm, insubstantial, irregular, irresolute, irresponsible, leger, light, light as air, light-minded, lighter than vanity, lubricious, mazy, mercurial, momentary, moody, mortal, mousse, mutable, nondurable, nonpermanent, passing, perishable, protean, quicksilver, rambling, resilient, restless, roving, scatterbrained, sensitive, shallow, shallow-headed, shallow-minded, shallow-pated, shallow-witted, shapeless, shifting, shifty, short-lived, shuffling, skittery, skittish, souffle, spasmodic, spineless, startlish, superficial, temperamental, temporal, temporary, tense, ticklish, toying, transient, transitive, transitory, unaccountable, uncertain, uncontrolled, undependable, undisciplined, undurable, unenduring, unfixed, unheavy, unpredictable, unprofound, unreliable, unrestrained, unsettled, unstable, unstable as water, unstaid, unsteadfast, unsteady, vacillating, vagrant, vaporable, vaporescent, vaporizable, vaporizing, variable, versatile, vicissitudinary, vicissitudinous, volatilizable, wandering, wanton, wavering, wavery, wavy, wayward, weightless, whimsical, wishy-washy, yeasty