non compos mentis

Adj.

1.

non compos mentis - not of sound mind, memory, or understanding; in law, not competent to go to trial Synonyms: of unsound mind

NON COMPOS MENTIS, persons. These words signify not of sound mind, memory, or understanding. This is a generic term, and includes all the species of madness, whether it arise from, 1, idiocy; 2, sickness 3, lunacy or 4, drunkenness. Co. Litt. 247; 4 Co. 124; 1 Phillim. R. 100; 4 Com. Dig. 613; 5 Com. Dig. 186; Shelf. on Lunatics, 1; and the articles Idiocy; Lunacy.

abnormal, bereft of reason, brainsick, crackbrained, cracked, crazed, crazy, daft, deluded, demented, deprived of reason, deranged, disoriented, distraught, flighty, hallucinated, insane, irrational, loco, lunatic, mad, maddened, manic, mazed, mental, mentally deficient, meshuggah, moon-struck, non compos, not all there, not right, odd, of unsound mind, off, psycho, queer, reasonless, senseless, sick, stark-mad, stark-staring mad, strange, tetched, touched, unbalanced, unhinged, unsane, unsettled, unsound, wandering, witless