Synonyms & Antonyms of insanity

1 a serious mental disorder that prevents one from living a safe and normal life
  • his incurable insanity requires that he spend the rest of his life in a mental hospital

Synonyms for insanity

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Antonyms for insanity

2 a foolish act or idea
  • everyone laughed at the latest insanity from the town eccentric

Synonyms for insanity

Words Related to insanity

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Time Traveler for insanity

Time Traveler

The first known use of insanity was in 1590

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Cite this Entry

“Insanity.” The Thesaurus, Merriam-Webster Inc., Accessed 11 December 2019.

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More from Merriam-Webster on insanity

Dictionary: Definition of insanity

Rhyming Dictionary: Words that rhyme with insanity

Medical Dictionary: Definition of insanity

Spanish Central: Translation of insanity

Nglish: Translation of insanity for Spanish Speakers

Britannica English: Translation of insanity for Arabic Speakers Encyclopedia article about insanity

Comments on insanity

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heavy with or as if with moisture

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