unstable | Definition of unstable

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 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 likely to change frequently, suddenly, or unexpectedly

financial investors don't like an unstable economy

Synonyms of unstable

capricious, changeable, changeful, fickle, flickery, fluctuating, fluid, inconsistent, inconstant, mercurial, mutable, skittish, temperamental, uncertain, unpredictable, unsettled, unsteady, variable, volatile

Words 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, versatile

Phrases Synonymous with unstable

Near Antonyms of unstable

equable, even, uniform

abiding, durable, lasting, permanent, persistent

dependable, reliable, sure, tried, tried-and-true, true, trustworthy, trusty

Antonyms of unstable

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

Synonyms of unstable

changing, erratic, fluctuating, irregular, unequal, uneven, unsteady, varying

Words Related to unstable

capricious, changeable, changeful, choppy, fickle, fluid, inconsistent, inconstant, mercurial, mutable, uncertain, unsettled, variable, volatile

Near Antonyms of unstable

Antonyms of unstable

changeless, constant, stable, steady, unchanging, unvarying