English dictionary

invalid meaning and definition

Definition and meaning of invalid at MeaningMonkey.org. invalid meaning and definition in the English Dictionary.

INVALID noun

Definition of invalid (noun)

  1. someone who is incapacitated by a chronic illness or injury

INVALID verb

Definition of invalid (verb)

  1. force to retire, remove from active duty, as of firemen
  2. injure permanently

INVALID adjective

Definition of invalid (adjective)

  1. having no cogency or legal force
    • "invalid reasoning"; "an invalid driver's license"
    • antonym: valid
  2. no longer valid
    • "the license is invalid"
Source: Princeton University Wordnet

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