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.

Ultimately, if she is of sound mind, the decision belongs to her.

From MarketWatch • Jul. 6, 2026

Although she is of sound mind, Guthrie has physical ailments that keep her from walking very far and needs to take a daily medication that she appears to be without.

From Los Angeles Times • Feb. 5, 2026

Reiner’s ability to check into a hotel and travel across Los Angeles where he was seen at a gas station and ultimately arrested isn’t necessarily a sign that he was of sound mind, Faerstein said.

From Los Angeles Times • Jan. 6, 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

“Because, I, Benjamin Meecham, being of sound mind and body, do hereby announce that I intend to take my sister, Mary Anne Meecham, to the Junior-Senior Spring Formal, if she but permits it.”

From "The Great Santini" by Pat Conroy

of sound mind

Example Sentences

Related Words