Dispute
Impugn
Impugn verb - Attack as false or wrong.
Dispute is a synonym for impugn in challenge topic. You can use "Dispute" instead the word "Impugn" as a verb or a noun, if it concerns topics such as deny, criticize, call into question.
Nearby Words: impugnment, impugning
Mutual synonyms
Cite this Source
Impugn and Dispute. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/dispute/impugn
Dispute & Impugn. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/dispute/impugn>.
Impugn or Dispute. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/dispute/impugn.
Google Ngram Viewer shows how "dispute" and "impugn" have occurred on timeline