Synonyms of insane in English:

insane

adjective

  • 1 she was declared insane
    mentally ill, mentally disordered, of unsound mind, certifiable; psychotic, schizophrenic; mad, deranged, demented, out of one's mind, non compos mentis, unhinged, unbalanced, unstable, disturbed, crazed
    vulgar slang batshit
    [Antonyms] sane
  • 2 insane laughter
    maniacal, psychotic, crazed, hysterical
    [Antonyms] normal
  • 3 an insane suggestion
    foolish, idiotic, stupid, silly, senseless, nonsensical, absurd, ridiculous, ludicrous, lunatic, preposterous, fatuous, inane, asinine, harebrained, half-baked; impracticable, implausible, irrational, illogical
    informal crazy, mad, cockeyed, daft
    [Antonyms] sensible
  • 4 I just looked at next week's schedule, and now I'm completely insane
    mad, crazy; angry, furious, annoyed
    informal aggravated, foaming at the mouth, hot under the collar
    [Antonyms] calm contented
  • Definition of insane in:

    Get more from Oxford Dictionaries

    Subscribe to remove adverts and access premium resources

    Word of the day anastrophe
    Pronunciation: əˈnastrəfi
    noun
    the inversion of the usual order of words...