Fallacious and Sane

Opposite meaning words

Fallacious adjective - Not using or following good reasoning.

Usage example: it's fallacious to say that something must exist because science hasn't proven its nonexistence

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Sane is an antonym for fallacious.

Sane adjective - Having full use of one's mind and control over one's actions.

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Fallacious is an antonym for sane.

Nearby Word: sanity

Cite this Source

Sane and Fallacious. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/fallacious/sane

Fallacious & Sane. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/fallacious/sane>.

Sane or Fallacious. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/fallacious/sane.

Google Ngram Viewer shows how "fallacious" and "sane" have occurred on timeline