Nonrational and Sound

Opposite meaning words

Nonrational adjective - Not using or following good reasoning.

Usage example: was so upset that he was completely nonrational for a moment

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Sound is an antonym for nonrational.

Sound adjective - According to the rules of logic.

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Nonrational is an antonym for sound.

Nearby Words: sounded, soundness, soundly, sounding, sounder

Cite this Source

Sound and Nonrational. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/nonrational/sound

Nonrational & Sound. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/nonrational/sound>.

Sound or Nonrational. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/nonrational/sound.

Google Ngram Viewer shows how "nonrational" and "sound" have occurred on timeline