INVALID

• (noun) someone who is incapacitated by a chronic illness or injury

  synonyms : shut-in

• (verb) injure permanently

  "He was disabled in a car accident"

  synonyms : disable , handicap , incapacitate

• (verb) force to retire, remove from active duty, as of firemen

• (adj.) having no cogency or legal force

  "invalid reasoning", "an invalid driver's license"

• (adj.) no longer valid

  "the license is invalid"

WordNet® 3.0, © 2006 by Princeton University.

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