Synonyms of invalid in English:


Pronunciation: stress on the first syllable


  • noun

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  • verb

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  • an officer invalided by a chest wound
    disable, incapacitate, indispose, hospitalize, put out of action, lay up, cripple, paralyse, lame, put on the sick list;
    injure, wound, hurt, weaken, enfeeble
  • Definition of invalid in:

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    Synonyms of invalid in English:


    Pronunciation: stress on the second syllable


  • 1 the by-law was invalid because it infringed rights of common
    void, legally void, null, null and void, unenforceable, not binding, inoperative, worthless;
    illegitimate, incorrect, improper, unacceptable, inapplicable;
    [Antonyms] valid, binding
  • 2 the whole theory is invalid
    false, untrue, inaccurate, faulty, fallacious, spurious, inadequate, unconvincing, unsound, weak, wrong, wrongly inferred, wide of the mark, off target;
    unjustified, unsubstantiated, unwarranted, untenable, baseless, ill-founded, unfounded, groundless;
    illogical, irrational, unscientific, absurd, preposterous, inconsistent
    informal off beam, out, way out, full of holes, bogus
    [Antonyms] true, accurate
  • Definition of invalid in: