Nonrational and Reasonable
Opposite meaning words
Nonrational
Nonrational adjective - Not using or following good reasoning.
Usage example: was so upset that he was completely nonrational for a moment
Reasonable is an antonym for nonrational.
Reasonable
Reasonable adjective - Based on sound reasoning or information.
Usage example: those playing rules sound reasonable to me
Nonrational is an antonym for reasonable.
Cite this Source
Reasonable and Nonrational. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/nonrational/reasonable
Nonrational & Reasonable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/nonrational/reasonable>.
Reasonable or Nonrational. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/nonrational/reasonable.
Google Ngram Viewer shows how "nonrational" and "reasonable" have occurred on timeline