Webster's Revised Unabridged Dictionary · 1913

committed

committed , adjective

[Narrower terms: bound up, involved, wrapped up; dedicated, devoted; pledged, sworn]

1.
Bound or obligated, as under a pledge to a particular cause, action, or attitude. Opposite of uncommitted.

[Narrower terms: affianced, bespoken, betrothed, engaged, pledged, promised(predicate); married]

2.
Associated in an exclusive sexual relationship; also called attached. Opposite of unattached.
3.
Consigned involuntarily to custody, as in a prison or mental institution.