san·​i·​ty | \ ˈsa-nə-tē How to pronounce sanity (audio) \

Definition of sanity

: the quality or state of being sane especially : soundness or health of 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.
See More
Recent Examples on the Web Our original plan was to ferry over to Governor’s Island, a wooded sea of sanity in the middle of the river. Paul Daugherty, The Enquirer, 2 Nov. 2021 The comic book follows an immortal warrior, known as Berzerker, a half-mortal, half-God, who is cursed and compelled toward violence—at the cost of his sanity. Alexia Fernández,, 29 Sep. 2021 Banisters continues a theme present in Del Rey’s previous music: that self-expression comes with a degree of risk to her mental sanity. Sarah Grant, Rolling Stone, 23 Oct. 2021 Given our current moment of apparent national derangement, when large areas of culture and politics seem to have slipped all tethers to reality, Pinker’s ambition to illuminate such a crucial topic offers the welcome prospect of a return to sanity. Washington Post, 8 Oct. 2021 So the makings for sanity are out there when their time comes. Clyde Wayne Crews Jr., Forbes, 8 Sep. 2021 Before he could be tried for killing his grandfather, Richard would have to be restored to sanity. Meg Kissinger, Milwaukee Journal Sentinel, 11 Aug. 2021 Dane’s family lineage stretches back to the medieval legend of King Arthur and the persona of the Black Knight, a warrior connected to the cursed Ebony Blade that bestows whoever wields it with terrific power — but at the cost of their sanity. Adam B. Vary, Variety, 28 Oct. 2021 For your — and your employees' — sanity and survival, take a step back and breathe. Suné Honeyborne, Forbes, 27 Oct. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sanity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of sanity

15th century, in the meaning defined above

History and Etymology for sanity

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

Learn More About sanity

Time Traveler for sanity

Time Traveler

The first known use of sanity was in the 15th century

See more words from the same century

Dictionary Entries Near sanity



San Jacinto

See More Nearby Entries 

Statistics for sanity

Last Updated

25 Nov 2021

Cite this Entry

“Sanity.” Dictionary, Merriam-Webster, Accessed 1 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for sanity



English Language Learners Definition of sanity

: the condition of having a healthy mind : the condition of being sane
: the condition of being based on reason or good judgment


san·​i·​ty | \ ˈsa-nə-tē How to pronounce sanity (audio) \

Kids Definition of sanity

: the state of having a healthy and sound mind


san·​i·​ty | \ ˈsan-ət-ē How to pronounce sanity (audio) \
plural sanities

Medical Definition of sanity

: the quality or state of being sane especially : soundness or health of mind



Legal Definition of sanity

: the quality or state of being sane — compare insanity

More from Merriam-Webster on sanity

Nglish: Translation of sanity for Spanish Speakers

Britannica English: Translation of sanity for Arabic Speakers


Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!