Of sound mind, memory, and understanding; in law, competent to go to trial.

synonym: compos mentis.

Roget 502: sane, rational, reasonable, compos mentis, of sound mind; sound, sound-minded; lucid.    self-possessed; sober, sober-minded.    in one's sober senses, in one's right mind; in possession of one's faculties.    ... show more