Nonrational and Unreasonable

Nonrational

Nonrational adjective - Not using or following good reasoning.
Usage example: was so upset that he was completely nonrational for a moment

Unreasonable and nonrational are semantically related. In some cases you can use "Unreasonable" instead an adjective "Nonrational".

Unreasonable

Unreasonable adjective - Not using or following good reasoning.
Usage example: an unreasonable respect for a man who did not deserve it

Nonrational and unreasonable are semantically related. Sometimes you can use "Nonrational" instead an adjective "Unreasonable".

Cite this Source
Unreasonable and Nonrational. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/nonrational/unreasonable
Nonrational & Unreasonable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/nonrational/unreasonable>.
Unreasonable or Nonrational. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/nonrational/unreasonable.
Google Ngram Viewer shows how "nonrational" and "unreasonable" have occurred on timeline