Unstable

a.

1.

Not stable; not firm, fixed, or constant; subject to change or overthrow. Unstable equilibrium See Stable equilibrium, under Stable.

Adj.	1.	unstable - lacking stability or fixity or firmness; "unstable political conditions"; "the tower proved to be unstable in the high wind"; "an unstable world economy" Antonyms: stable - resistant to change of position or condition; "a stable ladder"; "a stable peace"; "a stable relationship"; "stable prices"
	2.	unstable - highly or violently reactive; "sensitive and highly unstable compounds"
	3.	unstable - affording no ease or reassurance; "a precarious truce" Synonyms: precarious
	4.	unstable - suffering from severe mental illness; "of unsound mind" Synonyms: mentally ill, unsound
	5.	unstable - disposed to psychological variability; "his rather unstable religious convictions"
	6.	unstable - subject to change; variable; "a fluid situation fraught with uncertainty"; "everything was unstable following the coup" Synonyms: fluid

adrift, afloat, alternating, ambiguous, amorphous, borderline, brittle, buoyant, canted, changeable, changeful, changing, choppy, corruptible, crumbling, dangerous, deciduous, decrepit, desultory, deviable, deviating, deviative, deviatory, dickey, different, disintegrating, disorderly, divaricate, divergent, diversified, diversiform, dizzy, doubtful, dubious, dying, eccentric, effervescent, elastic, ephemeral, erose, erratic, evanescent, fading, fast and loose, fleeting, flickering, flighty, flitting, fluctuant, fluctuating, fluid, fly-by-night, flying, fragile, frail, freakish, fugacious, fugitive, giddy, hazardous, heeling, ill-balanced, impermanent, impetuous, impulsive, inconsistent, indecisive, indefinite, infirm, insecure, insubstantial, irregular, irresolute, irresponsible, jagged, jerky, leaning, listing, lopsided, lubricious, mazy, mercurial, mobile, momentary, moody, mortal, motley, moving, mutable, nonconformist, nondurable, nonpermanent, nonstandard, nonuniform, off-balance, overbalanced, passing, perilous, perishable, pluralistic, poor, poorish, precarious, protean, provisional, ragged, rambling, resilient, risky, rocky, rootless, rotten, rotten at, rough, roving, scatterbrained, shaky, shapeless, short-lived, shuffling, slippery, spasmodic, spineless, sporadic, suspect, temperamental, temporal, temporary, tentative, tergiversating, ticklish, top-heavy, tottery, transient, transitive, transitory, treacherous, tricky, unaccountable, unbalanced, uncertain, uncontrolled, undecided, undependable, undisciplined, undurable, unenduring, unequable, unequal, uneven, unfaithworthy, unfirm, unfixed, unhealthy, unorthodox, unpredictable, unreliable, unrestrained, unsafe, unsettled, unsolid, unsound, unstable as water, unstaid, unsteadfast, unsteady, unsturdy, unsubstantial, unsure, unsystematic, untrustworthy, ununiform, vacillating, vagrant, variable, variegated, variform, various, varying, vicissitudinary, vicissitudinous, volatile, wandering, wanton, wavering, wavery, wavy, wayward, weak, whimsical, wishy-washy, wobbly