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Definitions

sanity

[san-i-tee] / ˈsæn ɪ ti /
NOUN
mental health; soundness of judgment
Synonyms
STRONGEST
common-sense normality prudence rationality soundness stability wit
STRONG
acumen balance comprehension intelligence judiciousness lucidity lucidness marbles reason reasonableness sagacity saneness sense understanding
WEAK
clear mind good judgment healthy mind levelheadedness right mind sound mind
Antonyms
STRONG
ignorance inability ineptness misinterpretation mistake misunderstanding
WEAK
craziness insanity instability madness unsoundness

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.

Bloomberg defenders questioned the original posters’ sanity and experience.

From The Wall Street Journal • Mar. 17, 2026

"The Emperor has no clothes. Or rather, no sanity."

From BBC • Mar. 10, 2026

Reality can hurt, but it presents the gift of sanity.

From Los Angeles Times • Feb. 13, 2026

Not long ago, if you told me I’d be an enthusiastic advocate for the joys of hair metal, I’d have questioned your sanity.

From Salon • Dec. 14, 2025

My mom knew exactly what to do, and it was almost impossible for me to imagine her residing on the borders of sanity.

From "Aristotle and Dante Discover the Secrets of the Universe" by Benjamin Alire Saenz

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.