What is the opposite of validate?

Need antonyms for validate? Here's a list of opposite words from our thesaurus that you can use instead.

Verb
Opposite of to demonstrate or support the truth or value of
“I have no problems with research that disprove age-old theories that already mutated into dogma.”
Verb
Opposite of to make or declare legally valid
“Having your will reviewed by a good attorney will guard you against loopholes in the document that could invalidate the will in your state.”
Verb
Opposite of to give formal consent to
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Verb
Opposite of to give an official acceptance to something as being satisfactory
“Sarah is likely to decline the offer for an interview as she is content with her current job.”
Verb
(a feeling or quality) Opposite of to present oneself in a particular way by an action or series of actions
“He pretended to be somebody he wasn't, in order to mask his insecurities.”
Verb
Opposite of to establish or make a determination on the nature of someone or something
“Many people mistake the endangered water vole for the brown rat and accidentally poison them or disturb their burrows.”
Verb
Opposite of to bring fulfillment or happiness to one's life
“I hope I've done nothing to dissatisfy any of the tenants, least of all you, sir.”
Verb
Opposite of to uphold, affirm, or confirm the justice or validity of
“There is suspicion that some political leaders may manipulate and corrupt the law to serve their personal ends.”
Verb
Opposite of to give or assign a date to a document that is earlier than the current date, to antedate
Verb
Opposite of to identify or make a determination on something relevant or important
“How did I miss such a crucial clue?”
Verb
Opposite of to make, pronounce or show to be legitimate
“I am beyond disappointed that she would use her platform with thousands of followers to mock and illegitimize an entire community of people.”
Phrase
Opposite of to ensure or verify
“Because she has helped us before, it would be logical to assume that she will help us again.”
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