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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Together, these elements allow the battery to remain stable, efficient, and electrically responsive even in harsh, winter-like environments.—
Bojan Stojkovski,
Interesting Engineering,
15 Feb. 2026
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To make your own homemade cold foam taste more like a frozen creamer, use heavy cream for the base; this helps create a richer, thicker, and more stable texture.—
Sophia Beams,
Better Homes & Gardens,
15 Feb. 2026
Adjective
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Their film casts a lucid, uncompromising, yet deeply necessary light on the spiral of violence.—
Naman Ramachandran,
Variety,
11 Feb. 2026
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Perhaps not lucid dreams, but elucidating ones.—
Shaad D’Souza,
Pitchfork,
27 Jan. 2026
Adjective
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At normal pool, anglers will find them at depths of 20-25 feet.—
Bryan Hendricks,
Arkansas Online,
15 Feb. 2026
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What the files do seem to confirm, though, is the conspiracy theorist’s view of an elite stratosphere, where normal rules don’t apply, everyone knows each other, and ideological differences are subsumed to self-interested motives.—
The Week UK,
TheWeek,
14 Feb. 2026
Adjective
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Our affordability proposals will be part of a responsible, balanced budget because that’s what governing actually requires.—
Christopher Keating,
Hartford Courant,
11 Feb. 2026
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The festival is also on a solid footing for now, Tuttle says, having secured a balanced budget and around 60% of income self-generated through ticket sales, sponsorship and market activity.—
Elsa Keslassy,
Variety,
10 Feb. 2026
Adjective
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Perardi tried to stay rational.—
Matthew Bremner,
Rolling Stone,
11 Feb. 2026
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This disconnect between individual choice and individual benefit represents not merely an economic inefficiency but a philosophical failure to respect the rational agency of health care consumers.—
Jared Rhoads,
STAT,
10 Feb. 2026
Adjective
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Last Thursday, the league issued a $500,000 fine to the Utah Jazz and a $100,000 penalty to the Indiana Pacers for sitting healthy players, believing their apparent tanking actions compromised the league's competitive integrity.—
Arkansas Online,
Arkansas Online,
15 Feb. 2026
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Because in order to simply be safe during our sport, while expecting a certain level of performance, our bodies need to be healthy.—
Frederick Dreier,
Outside,
14 Feb. 2026
Cite this Entry
“Compos mentis.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/compos%20mentis. Accessed 19 Feb. 2026.
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