Nonrational and Weak

Nonrational

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

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

Weak

Weak adjective - Not using or following good reasoning.
Usage example: your argument is weak

Nonrational and weak are semantically related. Sometimes you can use "Nonrational" instead an adjective "Weak".

Cite this Source
Weak and Nonrational. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/nonrational/weak
Nonrational & Weak. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/nonrational/weak>.
Weak or Nonrational. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/nonrational/weak.
Google Ngram Viewer shows how "nonrational" and "weak" have occurred on timeline