When you test something's validity, you see if it holds true. Are these really the best chocolate chip cookies in the world? You might enjoy testing the validity of this statement.

The noun validity means genuine or authentic, but it also has a legal meaning: having legal force. Your family asked the judge to determine the validity of your grandfather's will because they weren't sure he was legally allowed to leave all his worldly goods to "the little green men from Mars." Related words include the adjective "valid" and its antonym "invalid," as well as the verb "validate."

Definitions of validity
  1. noun
    the quality of being valid and rigorous
    synonyms: cogency, rigor, rigour
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    type of:
    believability, credibility, credibleness
    the quality of being believable or trustworthy
  2. noun
    the property of being strong and healthy in constitution
    synonyms: hardiness, lustiness, robustness
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    type of:
    the property of being physically or mentally strong
  3. noun
    the quality of having legal force or effectiveness
    synonyms: validness
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    effect, force
    (of a law) having legal validity
    type of:
    lawfulness by virtue of conformity to a legal statute
Word Family