Synonyms of unstable in English:

unstable

adjective

  • 1 that old ladder looks unstable
    [Antonyms] steady
  • 2 unstable coffee prices
    changeable, volatile, variable, fluctuating, irregular, unpredictable, mercurial, capricious, erratic, 'on-again, off-again'
    [Antonyms] fixed, firm
  • 3 he was mentally unstable
    unbalanced, of unsound mind, mentally ill, deranged, demented, disturbed, unhinged, volatile
    informal kooky
    [Antonyms] balanced, of sound mind
  • Definition of unstable in:

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    Word of the day oleaginous
    Pronunciation: ˌəʊlɪˈadʒɪnəs
    adjective
    rich in, covered with, or producing oil; oily