unstable
1Unstable — 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] …
2unstable — index aleatory (uncertain), capricious, dangerous, ephemeral, faithless, fallible, inconsistent, indefi …
3unstable — early 13c., apt to move, from UN (Cf. un ) (1) not + STABLE (Cf. stable) (adj.). Cf. M.H.G. unstabel. Meaning liable to fall is recorded from c.1300; sense of fickle is attested from late 13c. An O.E. word for this was feallendlic, which might… …
4unstable — *inconstant, fickle, capricious, mercurial Analogous words: *changeable, variable, mutable, protean: volatile, effervescent, buoyant, resilient, *elastic Antonyms: stable …
5unstable — is the standard negative form of stable, but the corresponding noun is instability, not un . See in and un …
6unstable — / unsteady [adj] doubtful, weak ambiguous, borderline, capricious, changeable, dizzy, dubious, erratic, fickle, fitful, fluctuating, giddy, inconsistent, inconstant, insecure, irrational, lubricious, mercurial, mobile, movable, moving, mutable,… …
7unstable — ► ADJECTIVE (unstabler, unstablest) 1) prone to change or collapse; not stable. 2) prone to psychiatric problems or sudden changes of mood …
8unstable — [unstā′bəl] adj. [ME] not stable; specif., a) not fixed, firm, or steady; easily upset or unbalanced b) changeable; variable; fluctuating c) unreliable; fickle d) emotionally unsettled e) Chem. tending to decompose or change into other compounds …
9unstable — [[t]ʌ̱nste͟ɪb(ə)l[/t]] 1) ADJ GRADED You can describe something as unstable if it is likely to change suddenly, especially if this creates difficulty or danger. After the fall of Pitt in 1801 there was a decade of unstable government... The… …
10unstable — UK [ʌnˈsteɪb(ə)l] / US adjective 1) an unstable person becomes angry or upset often and very suddenly My father wasn t a bad man, but he was emotionally unstable. 2) an unstable government changes often and must deal with a lot of fighting and… …
