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non compos mentis

non compos mentis Non compos mentis is a historical Latin term for being mentally incapable of managing one’s own affairs because of mental illness or impairment.

Non compos mentis is a historical Latin term for being mentally incapable of managing one’s own affairs because of mental illness or impairment. It is usually used in a legal or technical sense.

Also see

Sources

Drafting source: Baldwin Dictionary of Philosophy and Psychology, 1901. 1901 New York Macmillan original; archive index checked 2026-10-18. “Non compos mentis” (Non compos mentis).
public-domain-US · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: 061e50ed67b72639a136163c6439653e62233ba6ec509e341122912cb0dc3adb

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Cite this entry

PsychTerms (psychterms.org), CC BY 4.0, version 1. “non compos mentis.” Development preview.

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