Thesaurus

unstable

adjective

Synonyms and Antonyms of unstable

  1. 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 of unstable unbalanced, unsteady Words Related to unstable rocky, shaky, tippy, tipsy, wavery, wobbly (also wabbly), wonky [British]; infirm, insecure, precarious, unsound; doddering, doddery, jiggling, jiggly, rickety, staggery, teetering, tottering, tottery; askew, awry, cockeyed, lopsided, off-kilter, uneven Near Antonyms of unstable even, level, straight; sound, sturdy, substantial Antonyms of unstable balanced, equilibrated, stabilized, stable, steady

  2. 2 likely to change frequently, suddenly, or unexpectedly financial investors don't like an unstable economy Synonyms of unstable capricious, changeable, changeful, flickery, fluctuating, fluid, inconsistent, inconstant, mercurial, mutable, skittish, temperamental, uncertain, unpredictable, unsettled, fickle, unsteady, variable, volatileWords Related to unstable 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, versatileNear Antonyms of unstable equable, even, uniform; abiding, durable, lasting, permanent, persistent; dependable, reliable, sure, tried, tried-and-true, true, trustworthy, trustyAntonyms of unstable certain, changeless, constant, immutable, invariable, predictable, settled, stable, stationary, steady, unchangeable, unchanging, unvarying

  3. 3 not staying constant unstable temperatures are not ideal storage conditions for wine Synonyms of unstable changing, erratic, fluctuating, irregular, unequal, uneven, unsteady, varyingWords Related to unstable capricious, changeable, changeful, choppy, fickle, fluid, inconsistent, inconstant, mercurial, mutable, uncertain, unsettled, variable, volatileNear Antonyms of unstable regularAntonyms of unstable changeless, constant, stable, steady, unchanging, unvarying

Synonym Discussion of unstable

inconstant, fickle, capricious, mercurial, unstable mean lacking firmness or steadiness (as in purpose or devotion). inconstant implies an incapacity for steadiness and an inherent tendency to change.
    • an inconstant friend
fickle suggests unreliability because of perverse changeability and incapacity for steadfastness.
    • performers discover how fickle fans can be
capricious suggests motivation by sudden whim or fancy and stresses unpredictability.
    • an utterly capricious critic
mercurial implies a rapid changeability in mood.
    • made anxious by her boss's mercurial temperament
unstable implies an incapacity for remaining in a fixed position or steady course and applies especially to a lack of emotional balance.
    • too unstable to hold a job


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