Entièrement. Il est complètement fou!
So as to be complete; with everything necessary.
To the the greatest degree or extent; completely or entirely; ('full' is used as a combining form as in 'full-grown' or 'full-fledged'); SYN. to the full, full.
1. In a complete and thorough manner; ('good' is used informally for 'thoroughly' as in); SYN. soundly, good.
2. In an exhaustive manner; SYN. exhaustively.
(Vieux) Action de compléter.
De manière complète, entière.