Affirm
Affirm verb - To state as a fact usually forcefully.
Usage example: unwilling to affirm without further study that the painting is an original Rembrandt
Challenge
Challenge verb - To demand proof of the truth or rightness of.
Common collocations
| character | affirm character | challenge character |
Cite this Source
Challenge and Affirm. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/affirm/challenge
Affirm & Challenge. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/affirm/challenge>.
Challenge or Affirm. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/affirm/challenge.
Google Ngram Viewer shows how "affirm" and "challenge" have occurred on timeline