Synonyms for unstable
ʌnˈsteɪ bəlun·sta·ble

Wiktionary(5.00 / 1 vote)Rate these synonyms:

1. unstableadjective

   Synonyms:
   instable

   Antonyms:
   stable

2. unstableadjective

   having a strong tendency to change

   Synonyms:
   instable

   Antonyms:
   stable

3. unstableadjective

   fluctuating; not constant

   Synonyms:
   instable

   Antonyms:
   stable

4. unstableadjective

   fickle

   Synonyms:
   instable

   Antonyms:
   stable

5. unstableadjective

   unpredictable

   Synonyms:
   instable

   Antonyms:
   stable

6. unstableadjective

   Readily decompasable

   Synonyms:
   instable

   Antonyms:
   stable

7. unstableadjective

   Radioactive, especially with a short half-life

   Synonyms:
   instable

   Antonyms:
   stable

English Synonyms and Antonyms(3.00 / 1 vote)Rate these synonyms:

1. unstable

   Uncertain is applied to things that human knowledge can not certainly determine or that human power can not certainly control; precarious originally meant dependent on the will of another, and now, by extension of meaning, dependent on chance or hazard, with manifest unfavorable possibility verging toward probability; as, one holds office by a precarious tenure, or land by a precarious title; the strong man's hold on life is uncertain, the invalid's is precarious.

   Synonyms:
   doubtful, dubious, equivocal, hazardous, insecure, perilous, precarious, risky, unassured, uncertain, unsettled, unsteady

   Antonyms:
   actual, assured, certain, firm, immutable, incontestable, infallible, real, settled, stable, steady, strong, sure, undeniable, undoubted, unquestionable

Princeton's WordNet(3.00 / 1 vote)Rate these synonyms:

1. unstableadjective

   lacking stability or fixity or firmness

   "unstable political conditions"; "the tower proved to be unstable in the high wind"; "an unstable world economy"

   Synonyms:
   unsound, fluid, precarious, mentally ill

   Antonyms:
   sane, firm, easy, lasting, stabilised, stabilized, resolute, unreactive, stable, unfluctuating, stabile, steady, unchangeable

2. unstableadjective

   highly or violently reactive

   "sensitive and highly unstable compounds"

   Synonyms:
   unsound, fluid, precarious, mentally ill

   Antonyms:
   stabilized, lasting, firm, stabile, unchangeable, easy, stable, steady, stabilised, resolute, unreactive, sane, unfluctuating

3. precarious, unstableadjective

   affording no ease or reassurance

   "a precarious truce"

   Synonyms:
   mentally ill, perilous, parlous, precarious, shaky, touch-and-go, unsound, fluid

   Antonyms:
   stabilised, stable, lasting, unchangeable, unfluctuating, stabile, easy, stabilized, unreactive, steady, resolute, sane, firm

4. mentally ill, unsound, unstableadjective

   suffering from severe mental illness

   "of unsound mind"

   Synonyms:
   mentally ill, bad, unfit, fallacious, precarious, unsound, fluid

   Antonyms:
   steady, easy, unreactive, lasting, resolute, firm, stabilised, sane, stabile, stable, unfluctuating, unchangeable, stabilized

5. unstableadjective

   disposed to psychological variability

   "his rather unstable religious convictions"

   Synonyms:
   unsound, fluid, precarious, mentally ill

   Antonyms:
   resolute, lasting, sane, stabilized, unfluctuating, stabilised, stable, stabile, firm, unchangeable, steady, easy, unreactive

6. fluid, unstableadjective

   subject to change; variable

   "a fluid situation fraught with uncertainty"; "everything was unstable following the coup"

   Synonyms:
   mentally ill, mobile, liquid, fluent, runny, smooth, precarious, unsound, fluid

   Antonyms:
   firm, lasting, stable, stabile, resolute, steady, unfluctuating, unreactive, unchangeable, sane, easy, stabilised, stabilized

Dictionary of English Synonymes(0.00 / 0 votes)Rate these synonyms:

1. unstableadjective

   Synonyms:
   UNSTEADY

Synonyms, Antonyms & Associated Words(0.00 / 0 votes)Rate these synonyms:

1. unstableadjective

   Synonyms:
   insecure, unsteady, irresolute, inconstant, erratic

PPDB, the paraphrase database(0.00 / 0 votes)Rate these paraphrases:

1. List of paraphrases for "unstable":

   volatile, instability, unsettled, precarious, unsteady, shaky, fragile, destabilizing, uncertain, ever-shifting, labile, insecure, destabilization, stable, fluid

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How to use unstable in a sentence?

1. Keir Giles:

   For Russia, the key concerns remain as they were at the outset of this crisis : Not losing Belarus to the The West, not allowing an unstable or unpredictable situation in a neighboring country, and not allowing people power to force a change in leadership.

2. Herodotus:

   If a man insisted always on being serious, and never allowed himself a bit of fun and relaxation, he would go mad or become unstable without knowing it.

3. Mickey Mehta:

   Today life is going through unstable paces, animals slaved in cages and food exhibited in show-cases. We eat trash, our language is brash, life is a dash and humanity is about to crash. Black is cash, party is a bash and cleansing is just a splash. Wake up, come back to nature or else a human being will just be reduced to a caricature . Let your life be naturalized, get MickeyMized.

4. Jeb Bush:

   Look, you can rewrite history all you want. But the simple fact is that we are in a much more unstable place because American pulled back.

5. Sam Bregman:

   Keith, as a police officer, had not only the right, but the duty to defend a fellow officer from a mentally unstable, violent man wielding two knives.

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