Antonyms of verb invalidate
3 of 4 senses of invalidate
Sense 1
invalidate, annul, quash, void, avoid, nullify -- (declare invalid; "The contract was annulled"; "void a plea")
Antonym of validate (Sense 1)
=> validate, formalize, formalise -- (declare or make legally valid)
Sense 3
invalidate, nullify -- (show to be invalid)
Antonym of validate (Sense 2)
=> validate -- (prove valid; show or confirm the validity of something)
Sense 4
invalidate, void, vitiate -- (take away the legal force of or render ineffective; "invalidate a contract")
Antonym of validate (Sense 4)
=> validate -- (make valid or confirm the validity of; "validate a ticket")
Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb invalidate
4 senses of invalidate
Sense 1
invalidate, annul, quash, void, avoid, nullify -- (declare invalid; "The contract was annulled"; "void a plea")
=> cancel, strike down -- (declare null and void; make ineffective; "Cancel the election results"; "strike down a law")
Sense 2
cancel, invalidate -- (make invalid for use; "cancel cheques or tickets")
=> score, mark -- (make underscoring marks)
Sense 3
invalidate, nullify -- (show to be invalid)
=> negate, contradict -- (prove negative; show to be false)
Sense 4
invalidate, void, vitiate -- (take away the legal force of or render ineffective; "invalidate a contract")
=> change, alter, modify -- (cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue")
Antonyms of adj invalidated
1 sense of invalidated
Sense 1
invalidated, nullified -- (deprived of legal force)
INDIRECT (VIA invalid) -> valid -- (well grounded in logic or truth or having legal force; "a valid inference"; "a valid argument"; "a valid contract")
Similarity of adj invalidated
1 sense of invalidated
Sense 1
invalidated, nullified -- (deprived of legal force)
=> invalid (vs. valid) -- (having no cogency or legal force; "invalid reasoning"; "an invalid driver's license")