Find Antonyms
validity Antonyms
Opposite of validity
Because the opposite of validity shifts with each meaning, the 8 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
• noun (Context 1)
The quality of being logically or factually sound, well-founded, and convincing.
Usage Example
"Independent researchers conducted several experiments to test the invalidity of the original hypothesis."
Strongest
invalidity
unsoundness
Strong
fallacy
baselessness
falsity
• noun (Context 2)
The state of being legally or officially binding, acceptable, or in force.
Usage Example
"Travelers should check the invalidity of their passports at least six months before departing for an international flight."
Strongest
invalidity
illegality
nullity
Strong
expiration
Similar words to validity
Words similar to validity shift depending on context. Common synonyms include:
soundness
legality
legitimacy
cogency
lawfulness
credibility
authenticity
veracity
Cite this Entry
Wordmom. (2026). Antonyms for Validity. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/validity