Synonyms of validity in English:

validity


See definition of validity

noun

1‘it is time to examine the validity of this argument’

SYNONYMS
soundness, reasonableness, rationality, logic, justifiability, defensibility, sustainability, plausibility, viability, bona fides, effectiveness, cogency, power, credibility, believability, force, strength, weight, foundation, substance, substantiality, authority, reliability
ANTONYMS

invalidity

2‘the judges have recognized the validity of the contract’

SYNONYMS
legal acceptability, authenticity, correctness, bona fides, genuineness
lawfulness, legality, legitimacy, binding nature, contractual nature
force, effect, effectiveness