Probable and Unreasonable
Opposite meaning words
Probable
Probable adjective - Worthy of being accepted as true or reasonable.
Unreasonable
Unreasonable adjective - Having no basis in reason or fact.
Probable is an antonym for unreasonable.
Cite this Source
Unreasonable and Probable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/probable/unreasonable
Probable & Unreasonable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/probable/unreasonable>.
Unreasonable or Probable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/probable/unreasonable.
Google Ngram Viewer shows how "probable" and "unreasonable" have occurred on timeline