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Synonyms of impossible in English:


  • 1 gale-force winds made fishing impossible
    unthinkable, unimaginable, inconceivable, absurd
    [Antonyms] easy
  • 2 an impossible dream
    unattainable, unachievable, unobtainable, unwinnable, hopeless, impractical, implausible, far-fetched, outrageous, preposterous, ridiculous, absurd, impracticable, unworkable, futile
    [Antonyms] attainable
  • 3 informal an impossible customer
    unreasonable, objectionable, difficult, awkward;
    intolerable, unbearable, unendurable;
    exasperating, maddening, infuriating, irritating
    informal high maintenance
    [Antonyms] bearable
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