Reasonable and Simpleminded
Opposite meaning words
Reasonable
Reasonable adjective - According to the rules of logic.
Usage example: his answer is perfectly reasonable
Simpleminded is an antonym for reasonable.
Simpleminded
Simpleminded adjective - Showing or marked by a lack of good sense or judgment.
Usage example: scornful of their simpleminded belief that their parents would always be there to take care of them
Reasonable is an antonym for simpleminded.
Cite this Source
Simpleminded and Reasonable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/reasonable/simpleminded
Reasonable & Simpleminded. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/reasonable/simpleminded>.
Simpleminded or Reasonable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/reasonable/simpleminded.
Google Ngram Viewer shows how "reasonable" and "simpleminded" have occurred on timeline