unstable

un·sta·ble

U0118000 (ŭn-stā′bəl)adj. un·sta·bler, un·sta·blest 1. a. Tending strongly to change: unstable weather.b. Not constant; fluctuating: unstable vital signs.2. a. Wavering or fickle: At first, he was unstable in his decisions.b. Showing or marked by erratic or volatile emotions or behavior.3. Not firmly placed; unsteady: an unstable ladder.4. Chemistry a. Decomposing readily.b. Highly or violently reactive.5. Physics a. Decaying with relatively short lifetime. Used of subatomic particles.b. Radioactive.

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un·sta′ble·ness n.un·sta′bly adv.

unstable

(ʌnˈsteɪbəl) adj1. lacking stability, fixity, or firmness2. disposed to temperamental, emotional, or psychological variability3. (Chemistry) (of a chemical compound) readily decomposing4. (Atomic Physics) physics a. (of an elementary particle) having a very short lifetimeb. spontaneously decomposing by nuclear decay; radioactive: an unstable nuclide. 5. (Electronics) electronics (of an electrical circuit, mechanical body, etc) having a tendency to self-oscillation unˈstableness n unˈstably adv

un•sta•ble

(ʌnˈsteɪ bəl)

adj. 1. not stable; not firm or firmly fixed; unsteady. 2. liable to change or fluctuate quickly: an unstable weather pattern. 3. marked by emotional instability. 4. unsteadfast; inconstant; wavering. 5. irregular in movement. 6. noting chemical compounds that readily decompose or change into other compounds. [1175–1225] un•sta′ble•ness, n. un•sta′bly, adv.

un·sta·ble

(ŭn-stā′bəl)1. Liable to change spontaneously into a nucleus or atomic particle with less mass. For example, the nucleus of uranium 238 is unstable and changes by radioactive decay into the nucleus of thorium 234, a lighter element.2. Relating to a chemical compound that decomposes or changes into other compounds or into elements easily. Candle wax, for example, which is made of a mixture of hydrocarbons, decomposes into carbon dioxide and water when it reacts with oxygen during combustion.3. Relating to an atom or chemical element that is likely to share electrons; reactive.

Thesaurus

Adj.	1.	unstable - lacking stability or fixity or firmness; "unstable political conditions"; "the tower proved to be unstable in the high wind"; "an unstable world economy"inconstant - likely to change frequently often without apparent or cogent reason; variable; "inconstant affections"; "an inconstant lover"; "swear not by...the inconstant moon"- Shakespeareimpermanent, temporary - not permanent; not lasting; "politics is an impermanent factor of life"- James Thurber; "impermanent palm cottages"; "a temperary arrangement"; "temporary housing"unsteady - subject to change or variation; "her unsteady walk"; "his hand was unsteady as he poured the wine"; "an unsteady voice"stable - resistant to change of position or condition; "a stable ladder"; "a stable peace"; "a stable relationship"; "stable prices"
	2.	unstable - highly or violently reactive; "sensitive and highly unstable compounds"reactive - participating readily in reactions; "sodium is a reactive metal"; "free radicals are very reactive"
	3.	unstable - affording no ease or reassurance; "a precarious truce"precariousuneasy - lacking a sense of security or affording no ease or reassurance; "farmers were uneasy until rain finally came"; "uneasy about his health"; "gave an uneasy laugh"; "uneasy lies the head that wears the crown"; "an uneasy coalition government"; "an uneasy calm"; "an uneasy silence fell on the group"
	4.	unstable - suffering from severe mental illness; "of unsound mind"mentally ill, unsoundinsane - afflicted with or characteristic of mental derangement; "was declared insane"; "insane laughter"
	5.	unstable - disposed to psychological variability; "his rather unstable religious convictions"irresolute - uncertain how to act or proceed; "the committee was timid and mediocre and irresolute"
	6.	unstable - subject to change; variable; "a fluid situation fraught with uncertainty"; "everything was unstable following the coup"fluidchangeful, changeable - such that alteration is possible; having a marked tendency to change; "changeable behavior"; "changeable moods"; "changeable prices"

unstable

adjective1. changeable, volatile, unpredictable, variable, fluctuating, unsteady, fitful, inconstant The situation is unstable and potentially dangerous.
changeable stable, steady, predictable, constant2. insecure, shaky, precarious, unsettled, wobbly, tottering, rickety, unsteady, not fixed a house built on unstable foundations3. unpredictable, irrational, erratic, inconsistent, unreliable, temperamental, capricious, changeable, untrustworthy, vacillating He was emotionally unstable.
unpredictable rational, level-headed, stable, consistent, reliable, trustworthy

unstable

adjective1. Capable of or liable to change:alterable, changeable, fluid, inconstant, mutable, uncertain, unsettled, unsteady, variable, variant.Archaic: various.2. Following no predictable pattern:capricious, changeable, erratic, fantastic, fantastical, fickle, freakish, inconsistent, inconstant, mercurial, temperamental, ticklish, uncertain, unpredictable, unsteady, variable, volatile, whimsical.3. Lacking stability:infirm, insecure, precarious, shaky, tottering, tottery, unsteady, unsure, weak, wobbly.4. Not physically steady or firm:precarious, rickety, shaky, tottering, tottery, unsteady, wobbly.

Translations

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unstable

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