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unstable 音標拼音: [ənst'ebəl] a. 不穩定的 不穩定的 unstable不穩定 unstable adj 1: lacking stability or fixity or firmness; " unstable political conditions"; " the tower proved to be unstable in the high wind"; " an unstable world economy" [ ant: { stable}] 2: highly or violently reactive; " sensitive and highly unstable compounds" 3: affording no ease or reassurance; " a precarious truce" [ synonym: { precarious}, { unstable}] 4: suffering from severe mental illness; " of unsound mind" [ synonym: { mentally ill}, { unsound}, { unstable}] 5: disposed to psychological variability; " his rather unstable religious convictions" 6: subject to change; variable; " a fluid situation fraught with uncertainty"; " everything was unstable following the coup" [ synonym: { fluid}, { unstable}] Unstable \ Un* sta" ble\, a. [ Cf. { Instable}.] Not stable; not firm, fixed, or constant; subject to change or overthrow. -- { Un* sta" ble* ness}, n. -- Chaucer. [ 1913 Webster] { Unstable equilibrium}. See { Stable equilibrium}, under { Stable}. [ 1913 Webster] 197 Moby Thesaurus words for " unstable": adrift, afloat, alternating, ambiguous, amorphous, borderline, brittle, buoyant, canted, capricious, 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, fickle, fitful, 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, inconstant, 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, restless, 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
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