unstable : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: unstable	by the DICT Development Group
2 results for unstable
From WordNet (r) 3.0 (2006) [wn]:
unstable adj lacking stability or fixity or firmness; "unstable political conditions"; "the tower proved to be unstable in the high wind"; "an unstable world economy" Antonym(s): stable highly or violently reactive; "sensitive and highly unstable compounds" affording no ease or reassurance; "a precarious truce" Synonym(s): precarious, unstable suffering from severe mental illness; "of unsound mind" Synonym(s): mentally ill, unsound, unstable disposed to psychological variability; "his rather unstable religious convictions" subject to change; variable; "a fluid situation fraught with uncertainty"; "everything was unstable following the coup" Synonym(s): fluid, unstable
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Unstable \Unsta"ble\, a. [Cf. {Instable}.] Not stable; not firm, fixed, or constant; subject to change or overthrow. -- {Unsta"bleness}, n. Chaucer. {Unstable* equilibrium}. See {Stable equilibrium}, under {Stable}.