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Word of the Day Tuesday, June 9, 2026

invalidate

/ɪnvælɪdeɪd/ verb · British & US
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What does invalidate mean?

verb

To make something invalid or no longer valid; to prove or show that something is not true or correct. To cancel or annul something.

Example

"The court's decision invalidated the contract, ruling it was signed under duress."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for invalidate

Antonyms of invalidate

Rhymes with invalidate

Etymologically related