What are the antonyms for VALID?

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Synonyms for VALID

Usage Examples for VALID

  1. It must be made to appear that they are valid within knowledge, but invalid elsewhere. - "John Dewey's logical theory" by Delton Thomas Howard
  2. I do not, however, think that the excuse, if offered, would be valid. - "The Reconciliation of Races and Religions" by Thomas Kelly Cheyne