non compos mentis
Meaning
Insane; not of sound mind; not in control of oneself.
Synonyms
of unsound mind
off one’s chump
off one’s nut
out of one’s mind
off one’s rocker
off one’s trolley
off one’s rocket
Translations
Etymology
From Latin non (“not”) + compos (“in control, having mastery”) + mentis (“of mind”).
Notes
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