rhizoverbBeta
DictionaryvaliditySoundness
noun

validity

vuh-LID-uh-tee/vəˈlɪdəti/

The quality of being well-founded or meeting the relevant standard.

The attendant checks the validity of a passenger's ticket.

A transit attendant scans a passenger’s ticket; a green check on the scanner and an open entry gate show that the ticket is valid and accepted.
Etymology
validLatinstrong, effective
+ityLatinstate or quality

The pieces express the quality of being strong or effective; the Latin noun meant strength. In the selected sense, that strength is legal force or sound support for a claim.

In context

run_gavagai_run41:20
you're assuming the validity of logic to prove the validity of logic
Matt Slick's Dichotomy

More examples

  • A false assumption undermines the validity of her argument.
  • Researchers assess the test's validity before using it to measure anxiety.
  • The missing signature raises doubts about the contract's validity.

Forms

validity

valid adjective — Well-founded or meeting the relevant standard.

validate verb — To confirm that something is valid.

Similar words

soundness
Emphasizes freedom from flaws in reasoning or judgment.
legitimacy
Emphasizes conformity to law or accepted rules, not reasoning.