Qui n'a pas toutes ses facultés intellectuelles.
1. Composed of only one thing or element or part
2. Not complex or complicated or involved
3. Not elaborate in style; unornamented
4. Cleverly simple; used of e.g. a solution to a problem
5. (Biology) Especially of leaf shapes; having no divisions or subdivisions; SYN. unsubdivided.
ETYM Cf. French simplet, Italian semplicione.
A person lacking intelligence or common sense; SYN. simple.