Oppugn
Oppugn verb - To demand proof of the truth or rightness of.
Cite this Source
Rival and Oppugn. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/oppugn/rival
Oppugn & Rival. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/oppugn/rival>.
Rival or Oppugn. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/oppugn/rival.
Google Ngram Viewer shows how "oppugn" and "rival" have occurred on timeline