Invalidate
Invalidate verb - To put an end to by formal action.
Usage example: those nations eventually invalidated their trade agreement
Validate
Validate verb - Make valid or confirm the validity of.
Usage example: validate a ticket
Invalidate is an antonym for validate in ascertain the truth topic.
Common collocations
| marriage | invalidate marriage | validate marriage |
| status | invalidate status | validate status |
| reason | invalidate reason | validate reason |
| possibility | invalidate possibility | validate possibility |
| Other words: development, fact, theory, existence, theories, claims. | ||
Cite this Source
Validate and Invalidate. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/invalidate/validate
Invalidate & Validate. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/invalidate/validate>.
Validate or Invalidate. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/invalidate/validate.
Google Ngram Viewer shows how "invalidate" and "validate" have occurred on timeline