Invalidate

Pronunciation

• UK IPA: /ˌɪnˈvæl.ɪ.deɪt/

Origin

From - + Latin valere ("to be strong"); literally, “to make not strong”.

Full definition of invalidate

Verb

1. To make invalid. Especially applied to contract law.The circuit court judge's ruling was invalidated by a superior judge.

Synonyms

• vitiate

Antonyms

• validate