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  • sane
    sane
    adjective
    free from mental derangement; having a sound, healthy mind.
  • SANE
    SANE
    noun
    a private nationwide organization in the U.S., established in 1957, that opposes nuclear testing and advocates international peace.
Synonyms

sane

1 American  
[seyn] / seɪn /

adjective

saner, comparative sanest superlative
  1. free from mental derangement; having a sound, healthy mind.

    a sane person.

  2. having or showing reason, sound judgment, or good sense.

    sane advice.

    Synonyms:
    judicious, sensible, reasonable
  3. sound; healthy.


SANE 2 American  
[seyn] / seɪn /

noun

  1. a private nationwide organization in the U.S., established in 1957, that opposes nuclear testing and advocates international peace.


sane British  
/ seɪn /

adjective

  1. sound in mind; free from mental disturbance

  2. having or showing reason, good judgment, or sound sense

  3. obsolete healthy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Adjectives

Etymology

Origin of sane1

First recorded in 1620–30, sane is from the Latin word sānus healthy

Origin of SANE2

Official shortening of its byname Committee for a Sane Nuclear Policy

Explanation

A sane person doesn't have any screws loose — in other words, they're free of mental illness and in a reasonable state of mind. You probably know that the word insane means crazy. Well, the opposite of insane is sane — or not crazy. A sane person is of sound mind and is mentally healthy. Sane people have good judgment, are reasonable, and can tell the difference between what's real and imagined. Whenever someone commits a crime or does something totally outlandish, people usually wonder if they're sane or not.

Keep Reading on Vocabulary.com

Vocabulary lists containing sane

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Aviv describes becoming sane as “a kind of narrative collapse, a confrontation with a personal history that is no longer recognizable.”

From Los Angeles Times Jul. 8, 2026

"No sane person would bring their greatest strength to the negotiating table," it said.

From Barron's Jun. 13, 2026

Yet Forster maintained his equilibrium and held to his admirably sane conception of the human condition.

From The Wall Street Journal Jun. 12, 2026

The BuzzMeter panel long advocated for Rhea Seehorn to win for her performance as the sane, professional Kim Wexler, in danger of being dragged into the main character’s vortex in “Better Call Saul.”

From Los Angeles Times May 21, 2026

It was as though the sane well-balanced girl had gone mad before their eyes.

From "And Then There Were None" by Agatha Christie

Windsor was also an ambassador of the mental health charity SANE, which will receive all profits from the evening.

From BBC Aug. 1, 2024

Shelley, a nurse in rural Eagle County, Colorado, went to her car and called a telehealth company to arrange an appointment with a sexual assault nurse examiner, or SANE.

From Seattle Times Jan. 8, 2023

“I challenged the psychiatrists on that. I know a lot about schizophrenia because I set up SANE, which was originally for schizophrenia. I said, ‘Have you read what they’ve written?

From Los Angeles Times Oct. 2, 2022

The specialty includes sexual assault nurse examiners, known by the acronym SANE.

From Washington Times Mar. 30, 2015

SANE, J. MARTIN-, executor of the   Estate of Abel Bonnard.

From U.S. Copyright Renewals, 1963 July - December by Library of Congress. Copyright Office

It’s a concept borrowed from restaurant service — those end-of-night tasks that set you up for a smoother, saner start the next day — and it immediately appealed to me.

From Salon Mar. 19, 2026

The tournament long known as March Madness has a problem: It has never been saner than it is right now.

From The Wall Street Journal Mar. 17, 2026

Dispatches from a saner time of millennial life like “Up Down” and “Can’t Believe It” landed like an envelope of Instax photos from a half-remembered house party.

From Los Angeles Times Nov. 24, 2025

Indira, with the saner follow-up: “Dorothy, don’t get in the fight.”

From New York Times Jan. 9, 2024

Kids traveled from all over the city, north, east, and west, leaving behind their neighborhood skirmishes for a school they hoped might be a little safer, a little saner than the one closer to home.

From "The 57 Bus" by Dashka Slater

“The sanest way forward — you have to learn how to split yourself up into other selves, like an earthworm,” her mentor advised her years earlier, when she was about to graduate.

From Washington Post Sep. 14, 2022

Wakefield What happens when the sanest person working in a psych ward starts to lose his grip?

From Los Angeles Times Oct. 18, 2021

“Having a therapist has taught me to be less cruel to myself. It’s not like therapy has made me the world’s sanest person; it’s just made me slightly less insane.”

From Seattle Times Jul. 14, 2021

We can look at all of this and hope that our sanest elected officials will use their power to make life better for the whole realm.

From Salon Apr. 23, 2021

My mother’s sanest position is to wear only the necessary parts of the outfit and leave off the rest.

From "The Poisonwood Bible" by Barbara Kingsolver

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