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]
         [WordNet 1.5]

   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.]

   Syn: attached.
        [WordNet 1.5]

   3. Consigned involuntarily to custody, as in a prison or
      mental institution.
      [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Promise \Prom"ise\, v. t. [imp. & p. p. Promised; p. pr. & vb.
   n. Promising.]
   [1913 Webster]
   1. To engage to do, give, make, or to refrain from doing,
      giving, or making, or the like; to covenant; to engage;
      as, to promise a visit; to promise a cessation of
      hostilities; to promise the payment of money. "To promise
      aid." --Shak.
      [1913 Webster]

   2. To afford reason to expect; to cause hope or assurance of;
      as, the clouds promise rain. --Milton.
      [1913 Webster]

   3. To make declaration of or give assurance of, as some
      benefit to be conferred; to pledge or engage to bestow;
      as, the proprietors promised large tracts of land; the
      city promised a reward.
      [1913 Webster]

   Promised land. See Land of promise, under Land.

   To promise one's self.
      (a) To resolve; to determine; to vow.
      (b) To be assured; to have strong confidence.
          [1913 Webster]

                I dare promise myself you will attest the truth
                of all I have advanced.           --Rambler.
          [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

54 Moby Thesaurus words for "promised":
   affianced, agreed, anticipated, arranged, assured, augured,
   awaited, betrothed, bound, committed, compacted, compromised,
   contracted, covenanted, due, engaged, expected, foreseen,
   foreshadowed, foreshown, foretokened, guaranteed, hoped-for,
   imminent, in prospect, in view, indicated, intended, long-expected,
   obligated, on the horizon, overdue, pledged, plighted, predicted,
   prefigured, preindicated, presaged, presignified, presumed,
   pretypified, probable, prognosticated, prospective, sealed,
   settled, signed, signified, stipulated, sworn, threatened,
   undertaken, underwritten, warranted