Thesaurus
unstable
adjective
Synonyms and Antonyms of UNSTABLE
1
not being in or able to maintain a state of balance <the minute we put the books down on the unstable desk, the whole stack went crashing to the floor>
Synonyms unbalanced, unsteady
2
likely to change frequently, suddenly, or unexpectedly <financial investors don't like an unstable economy>
Synonyms capricious, changeable, changeful, flickery, fluctuating, fluid, inconsistent, inconstant, mercurial, mutable, skittish, temperamental, uncertain, unpredictable, unsettled, unstable, unsteady, variable, volatile
Related Words aimless, arbitrary, desultory, erratic, haphazard, hit-or-miss, irregular, random, scattered, slapdash, stray; ambivalent, hesitating, shaky, shilly-shally, shilly-shallying, vacillating, wavering; dicey, undependable, unreliable, untrustworthy; adaptable, mobile, protean, versatile
Near Antonyms equable, even, uniform; abiding, durable, lasting, permanent, persistent; dependable, reliable, sure, tried, tried-and-true, true, trustworthy, trusty
Antonyms certain, changeless, constant, immutable, invariable, predictable, settled, stable, stationary, steady, unchangeable, unchanging, unvarying
3
not staying constant <unstable temperatures are not ideal storage conditions for wine>
Related Words capricious, changeable, changeful, choppy, fickle, fluid, inconsistent, inconstant, mercurial, mutable, uncertain, unsettled, variable, volatile
Near Antonyms regular
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