The Collaborative International Dictionary of English v.0.48:
committed \committed\ adj.
1. Bound or obligated, as under a pledge to a particular
cause, action, or attitude. Opposite of uncommitted.
Note: [Narrower terms: bound up, involved, wrapped up;
dedicated, devoted; pledged, sworn]
2. Associated in an exclusive sexual relationship; also
called attached. Opposite of unattached.
Note: [Narrower terms: affianced, bespoken, betrothed,
engaged, pledged, promised(predicate); married]
[Also See: loving.]
3. Consigned involuntarily to custody, as in a prison or