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1. Oxford Dictionary

   unstable

   • IPA[ʌnˈsteɪbl]

   英式

   • adj.
     likely to give way; not stable；likely to change or fail; not firmly established
2. • 釋義
   • 相關詞

   adj.

   形容詞

   • 1. likely to give way; not stable the unstable cliff tops 同義詞 unsteady, rocky, wobbly, wobbling, rickety, ... 更多shaky, tottery, tottering, teetering, doddery, unsafe, unbalanced, unreliable, insecure, not secure, unfastened, unsecured, movable, precarious, bockety反義詞 stable, steady
   • ▪ likely to change or fail; not firmly established some students found themselves in unstable housing situations 同義詞 changeable, volatile, variable, unsettled, fluctuating, ... 更多inconstant, inconsistent, irregular, fitful, unpredictable, unreliable, fickle, capricious, mercurial, erratic, uncertain, wavering, informalpeaky反義詞 stable, firm
   • ▪ prone to psychiatric problems or sudden changes of mood he was mentally unstable 同義詞 unbalanced, of unsound mind, mentally ill, deranged, demented, ... 更多crazed, distracted, troubled, disturbed, unhinged, insane, mad, mad as a hatter, mad as a March hare, raving mad, lunatic, out of one's mind/head, not in one's right mind, neurotic, psychotic, non compos mentis, sectionable, informalcrazy, loopy, loony, mixed up, nuts, nutty, nutty as a fruitcake, bananas, cracked, crackpot, dippy, screwy, bats, cuckoo, bonkers, mental, screwed up, not all there, off one's head, out to lunch, a bit lacking, round the bend, daft, barmy, crackers, barking, barking mad, batty, dotty, potty, off one's trolley/rocker, daft as a brush, not the full shilling, round the twist, away with the fairies, nutsy, nutso, squirrelly, wacko, buggy, datedtouched反義詞 stable, balanced

   unstable equilibrium

   • n.
     a state of equilibrium in which a small disturbance will produce a large change.

   Oxford Dictionary

3. • 更多解釋

   unstable

   • IPA[ˌənˈstāb(ə)l]

   美式

   • adj.
     likely to give way; not stable: the unstable cliff tops

   Oxford American Dictionary