invalid (adj.)

  1. having no cogency or legal force; invalid reasoning; an invalid driver's license'

    invalid (n.)

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

    [ Syn: shut-in ]

    invalid (adj.)

  1. no longer valid; the license is invalid'

    invalid (v.)

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

  2. injure permanently; He was disabled in a car accident

    [ Syn: disable , incapacitate , handicap ]

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.