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Synonyms

of sound mind

American  
[uhv sound mahynd] / əv ˈsaʊnd ˈmaɪnd /

idiom

  1. capable of rational thought and decision making, unimpaired by mental illness, drugs, dementia, etc.; compos mentis.


Etymology

Origin of of sound mind

First recorded in 1605–15

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.

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

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

The law will take its course; your brother will not prevail if you were clearly listed as a beneficiary, there was no coercion and/or your father was of sound mind when he made this decision.

From MarketWatch • Nov. 21, 2025

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

From Salon • Jul. 30, 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