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invalid

see definition of invalid
  • adjworthless; unfounded
  • adjsickly
  • nounsick person
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Synonyms for invalid

adj worthless; unfounded
  • baseless
  • false
  • inoperative
  • irrational
  • null
  • unreasonable
  • unscientific
  • unsound
  • untrue
  • bad
  • void
  • wrong
  • fallacious
  • ill-founded
  • illogical
  • mad
  • not binding
  • not working
  • nugatory
  • null and void
  • reasonless
  • sophistic
  • unreasoned

Antonyms for invalid

  • honest
  • logical
  • reasonable
  • sensible
  • sound
  • stable
  • true
  • valid
  • OK
  • good
  • right
  • healthy
  • well
  • worthwhile
  • worthy
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

More words related to invalid

bedridden

adjective. sick in bed
  • ailing
  • disabled
  • flat on one's back
  • ill
  • incapacitated
  • infirm
  • invalid
  • laid up
  • prostrate
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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