Nullify and Validate

Opposite meaning words

Nullify verb - To put an end to by formal action.

Usage example: the constitutional amendment that nullified Prohibition

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Validate is an antonym for nullify in topics: invalidate, cancel.

Validate verb - Prove valid; show or confirm the validity of something.

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Nullify is an antonym for validate.

Cite this Source

Validate and Nullify. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/nullify/validate

Nullify & Validate. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/nullify/validate>.

Validate or Nullify. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/nullify/validate.

Google Ngram Viewer shows how "nullify" and "validate" have occurred on timeline