Found 2 items, similar to unstable.
English → English (WordNet) Definition: unstable 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” [syn: precarious] 4: suffering from severe mental illness; “of unsound mind” [syn: mentally ill, unsound] 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” [syn: fluid]
English → English (gcide) Definition: 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]