Definitions

of sound mind

[uhv sound mahynd] / əv ˈsaʊnd ˈmaɪnd /

ADJECTIVE

compos mentis

Synonyms

WEAK

all there balanced lucid mentally sound rational sound stable well-balanced

ADJECTIVE

sane

Synonyms

STRONGEST

balanced fair-minded healthy intelligent levelheaded logical lucid normal prudent rational sensible sober wise

WEAK

all there both oars in water commonsensical compos mentis discerning fit having all marbles in one's right mind judicious moderate oriented playing with full deck right right-minded sagacious sage sapient self-possessed sound steady together well

Antonyms

STRONGEST

foolish irrational stupid unbalanced unintelligent unrealistic unreasonable unwise

WEAK

crazy insane unsound unstable

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.

There are some non-vacation-related items for your to-do list, as well: create power-of-attorney documents while your husband is of sound mind and has the legal capacity to sign off on them.

From MarketWatch • Apr. 9, 2026

While she is of sound mind without cognitive issues, Guthrie does have physical ailments that keep her from walking far, officials said.

From Los Angeles Times • Feb. 5, 2026

In 2016, Michael sent a cease-and-desist letter to Saks’s management explaining that his mother wasn’t of sound mind and that Kwatra was abusing his position.

From The Wall Street Journal • Dec. 25, 2025

There’s no reason to doubt whether Hackman was of sound mind at that time.

From Salon • Jul. 30, 2025

“This reassures me that I was of sound mind never to have children.”

From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin

of sound mind

Example Sentences

Related Words