sanity

noun

san·​i·​ty ˈsa-nə-tē 

: the quality or state of being sane

especially : soundness or health of mind

Synonyms of sanity

• mind

Examples of sanity in a Sentence

People have begun to doubt his sanity.

She is the mother of six children but somehow keeps her sanity.

The sanity of the decision was never in question.

Recent Examples on the Web

The president didn’t take well to the speech, reacting angrily in a post on Truth Social that questioned De Niro’s sanity, intelligence and legal standing. —Brian Niemietz, New York Daily News, 26 Feb. 2026

Get ready to watch another man question his sanity. —Shania Russell, Entertainment Weekly, 26 Feb. 2026

This sanity-threatening quest went on for almost a decade, with Dominique driving her to every appointment and throwing the doctors off the scent. —Gaby Wood, Vogue, 21 Feb. 2026

Daring to enter the Paragon, not heeding the warnings, the Creepers fend off deadly rivals while supernatural creatures stalk them from the shadows, testing their endurance, sanity and willingness to pay fame’s heavy price. —Anthony D'alessandro, Deadline, 17 Feb. 2026

Word History

Etymology

Middle English sanite, from Anglo-French sanité, from Latin sanitat-, sanitas health, sanity, from sanus healthy, sane

First Known Use

15th century, in the meaning defined above

Phrases Containing sanity

• lose one's mind/sanity

Rhymes for sanity

• vanity
• christianity
• inhumanity
• humanity
• inanity
• insanity
• profanity
• urbanity

Kids Definition

sanity

noun

san·​i·​ty ˈsan-ət-ē 

: the quality or state of being sane

Medical Definition

sanity

noun

san·​i·​ty ˈsan-ət-ē 

plural sanities

: the quality or state of being sane

especially : soundness or health of mind

Legal Definition

sanity

noun

san·​i·​ty

: the quality or state of being sane compare insanity