as in stable
having full use of one's mind and control over one's actions
went to court to prove that her grandmother was no longer compos mentis and needed a legal guardian
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Recent Examples of compos mentis
Second, and more important, while Biden’s voice may be faltering, and some of his sentences rest incomplete, there is little question which candidate is less compos mentis than the other.
—
Jack Rakove, Chicago Tribune, 18 July 2024
Too a Real President meeting yesterday largely succeeded in its immediate goal: News coverage showed Trump in the act of president-ing with the air of a man who is, if not a stable genius, at least compos mentis.
—Jonathan Chait, Daily Intelligencer, 10 Jan. 2018
Jack Rakove, Chicago Tribune, 18 July 2024
Too a Real President meeting yesterday largely succeeded in its immediate goal: News coverage showed Trump in the act of president-ing with the air of a man who is, if not a stable genius, at least compos mentis.
—Jonathan Chait, Daily Intelligencer, 10 Jan. 2018
Recent Examples of Synonyms for compos mentis
Adjective
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Officials said Kuwait’s electricity and water systems remain stable and contingency plans had been activated to ensure continued supply, according to the statement.—
Anniek Bao,
CNBC,
30 Mar. 2026
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Officials said injury statuses ranged from stable to critical.—
Garrett Behanna,
CBS News,
30 Mar. 2026
Adjective
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Its elegant, rounded boxes for column and row numbers and lucid formula-building bar are wonders to behold.—
Edward Mendelson,
PC Magazine,
19 Mar. 2026
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But his lucid, sensitive evocations of Blume’s suburban girlhood should put the question of his ability to rest.—
Katy Waldman,
New Yorker,
18 Mar. 2026
Adjective
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The mall resumed operations as normal following the shooting, as police determined there was no threat to the general public.—
Andrew Adeolu,
CBS News,
29 Mar. 2026
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Waymo vehicles also can take 30 minutes to wait for and twice as long as a normal ride.—
Michael Butler,
Miami Herald,
28 Mar. 2026
Adjective
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This network allows the sleep surface to respond dynamically to the sleeper’s individual weight distribution, helping maintain balanced spinal alignment for a wide range of body types.—
Jason Phillips,
USA Today,
25 Mar. 2026
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Hollywood had no interest in presenting balanced portrayals of Black life.—
Literary Hub,
Literary Hub,
25 Mar. 2026
Adjective
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If more teams have lottery access and the worst teams don’t gain much by being the worst, then more franchises can justify late-season losing as a rational move.—
C.J. Holmes,
New York Daily News,
27 Mar. 2026
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Condemning Israel for its treatment of Palestinian dreams and aspirations is a rational choice.—
Chicago Tribune,
Chicago Tribune,
27 Mar. 2026
Adjective
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One of the world’s five Blue Zones, Nicoya is known for its high number of centenarians whose longevity is often attributed to their healthy, community-centric lifestyle.—
Meghan Palmer,
Condé Nast Traveler,
29 Mar. 2026
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The public can also report sightings of healthy animals by clicking here.—
Alexa Herrera,
CBS News,
28 Mar. 2026
Cite this Entry
“Compos mentis.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/compos%20mentis. Accessed 31 Mar. 2026.
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