Perverse
Unreasonable
Unreasonable adjective - Having no basis in reason or fact.
Perverse and unreasonable are semantically related. Sometimes you can use "Perverse" instead an adjective "Unreasonable".
Mutual synonyms
Cite this Source
Unreasonable and Perverse. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/perverse/unreasonable
Perverse & Unreasonable. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/perverse/unreasonable>.
Unreasonable or Perverse. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/perverse/unreasonable.
Google Ngram Viewer shows how "perverse" and "unreasonable" have occurred on timeline