Demented and Reasonable

Opposite meaning words

Demented adjective - Having or showing a very abnormal or sick state of mind.

Usage example: a poor, demented animal that had obviously suffered years of abuse

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Reasonable is an antonym for demented in topics: mad, crazy.

Nearby Word: dementing

Reasonable adjective - According to the rules of logic.

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Demented is an antonym for reasonable.

Cite this Source

Reasonable and Demented. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/demented/reasonable

Demented & Reasonable. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/demented/reasonable>.

Reasonable or Demented. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/demented/reasonable.

Google Ngram Viewer shows how "demented" and "reasonable" have occurred on timeline