Invalid Synonyms and Antonyms

ĭnvə-lĭd
Containing fundamental errors in reasoning
(Adjective)
Synonyms:
  1. false
  2. unsound
  3. fallacious
  4. baseless
  5. illogical
  6. inauthentic
  7. inoperative
  8. sophistic
  9. nugatory
  10. null
  11. specious
  12. null-and-void
  13. of no efficacy
  14. spurious
  15. powerless
  16. unfounded
  17. unlawful
  18. valetudinarian
  19. void
Antonyms:
  1. healthy
  2. well
Someone who is incapacitated by a chronic illness or injury
(Noun)
Synonyms:
  1. patient
  2. cripple
  3. shut in
  4. valetudinarian
  5. disabled person
  6. handicapped person
  7. sickly person
  8. convalescent
  9. paralytic
  10. feeble
  11. weakling
  12. sufferer
  13. ineffective
  14. infirm
  15. incurable
  16. null
  17. consumptive
  18. tubercular
  19. sickly
  20. neurasthenic
  21. unfounded
  22. bedridden person
  23. unreasonable
  24. bed case
  25. useless
  26. void
  27. weak
  28. worthless
Without force or effect
(Adjective)
Synonyms:
  1. unreasonable
  2. indefensible
  3. null-and-void
Worthless
(Adjective)
Antonyms:
  1. valid
  2. true
  3. worthwhile
  4. worthy
  5. sound

Words Related to Invalid

Related words are words that are directly connected to each other through their meaning, even if they are not synonyms or antonyms. This connection may be general or specific, or the words may appear frequently together.

Invalid Sentence Examples

  • You treat me like an invalid or a child.

  • He was returned, but the election was declared invalid.

  • A fall from his horse in 1845 made him a hopeless invalid, and completely removed him from public life.

  • She is almost an invalid.

  • Any more or less number of digits will make the account number invalid.

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