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Meaning of unstable in English

  1. Pronunciation

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  1. Classifying Adjective

    unstable

    Definitions

    1. highly or violently reactive

    Examples

    • « sensitive and highly unstable compounds »

    Synonyms

    • reactive
  2. 2. affording no ease or reassurance

    Examples

    • « a precarious truce »

    Synonyms

    • uneasy
  3. 3. suffering from severe mental illness

    Examples

    • « of unsound mind »

    Synonyms

    • insane
  4. 4. disposed to psychological variability

    Examples

    • « his rather unstable religious convictions »

    Synonyms

    • irresolute
  5. 5. subject to change

    Examples

    • « variable »
    • « a fluid situation fraught with uncertainty »
    • « everything was unstable following the coup »

    Synonyms

    • changeable
    • changeful
  6. Qualitative Adjective

    unstable

    Definitions

    1. lacking stability or fixity or firmness

    Examples

    • « unstable political conditions »
    • « the tower proved to be unstable in the high wind »
    • « an unstable world economy »

    Synonyms

    • coseismic
    • coseismal
    • crank
    • cranky
    • tender
    • tippy
    • disturbed
    • unsettled
    • explosive
    • volatile
    • labile
    • rickety
    • shaky
    • wobbly
    • wonky
    • rocky
    • seismic
    • seismal
    • thermolabile
    • top-heavy
    • tottering
    • volcanic

    Antonyms

    • stable

See also

  • impermanent
  • inconstant
  • unsteady

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