Invalidate and Validate


Invalidate verb - To put an end to by formal action.
Usage example: those nations eventually invalidated their trade agreement

Validate is an antonym for invalidate in topics: nullify, render null and void.


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 2023, June 05, from
Invalidate & Validate. N.p., 2016. Web. 05 Jun. 2023. <>.
Validate or Invalidate. 2016. Accessed June 05, 2023.
Google Ngram Viewer shows how "invalidate" and "validate" have occurred on timeline