Irrational and Nonvalid

Irrational

Irrational adjective - Not using or following good reasoning.

Nonvalid and irrational are semantically related. In some cases you can use "Nonvalid" instead an adjective "Irrational".

Nearby Words: irrationality, irrationally

Nonvalid

Nonvalid adjective - Having no basis in reason or fact.
Usage example: a nonvalid theory that most scientists rejected long ago

Irrational and nonvalid are semantically related. Sometimes you can use "Irrational" instead an adjective "Nonvalid".
Cite this Source
Nonvalid and Irrational. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/irrational/nonvalid
Irrational & Nonvalid. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/irrational/nonvalid>.
Nonvalid or Irrational. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/irrational/nonvalid.
Google Ngram Viewer shows how "irrational" and "nonvalid" have occurred on timeline