invalidate

verb
UK: /ɪnˈvælɪdeɪt/
US: /ɪnˈvælɪdeɪt/

  1. To prove that something is not true or correct.

    1. New evidence may invalidate his alibi.
    2. The recent discovery of the document could invalidate the company's claim.

  2. To make something lose legal force or effect.

    1. A technicality could invalidate the contract.
    2. Failure to comply with these rules may invalidate your application.

Synonyms

nullify void disprove negate cancel overturn
invalidate adjective

  1. Having been made weak or not useful anymore.

    1. An invalidate access is reported.
    2. He had an invalidate address to send the parcel.

Frequently Asked Questions

The word "invalidate" in English means: To prove that something is not true or correct., To make something lose legal force or effect..

The phonetic transcription of "invalidate" is /ɪnˈvælɪdeɪt/ in British English and /ɪnˈvælɪdeɪt/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "invalidate": nullify, void, disprove, negate, cancel, overturn.

Example usage of "invalidate": "New evidence may invalidate his alibi.". More examples on the page.