The Collaborative International Dictionary of English v.0.48:

Disengage \Dis`en*gage"\, v. t. [imp. & p. p. Disengaged; p.
   pr. & vb. n. Disengaging.] [Pref. dis- + engage: cf. F.
   d['e]sengager.]
   To release from that with which anything is engaged,
   engrossed, involved, or entangled; to extricate; to detach;
   to set free; to liberate; to clear; as, to disengage one from
   a party, from broils and controversies, from an oath,
   promise, or occupation; to disengage the affections a
   favorite pursuit, the mind from study.
   [1913 Webster]

         To disengage him and the kingdom, great sums were to be
         borrowed.                                --Milton.
   [1913 Webster]

         Caloric and light must be disengaged during the
         process.                                 --Transl. of
                                                  Lavoisier.

   Syn: To liberate; free; loose; extricate; clear; disentangle;
        detach; withdraw; wean.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Disengaged \Dis`en*gaged"\, a.
   Not engaged; free from engagement; at leisure; free from
   occupation or care; vacant. -- Dis`en*ga"ged*ness, n.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

71 Moby Thesaurus words for "disengaged":
   afoot and lighthearted, alienated, at large, at leisure,
   at liberty, at loose ends, available, clear, detached,
   disarticulated, disconnected, disjoined, disjoint, disjointed,
   disjunct, dislocated, dispersed, disunited, divided, divorced,
   easygoing, emancipated, escaped, estranged, fallow, fled, flown,
   footloose, footloose and fancy-free, free, free and easy,
   free as air, freeborn, freed, fugitive, go-as-you-please, idle,
   in the clear, isolated, jobless, leisure, leisured, liberated,
   loose, lumpen, off, off duty, off work, on the loose, otiose,
   out of, out of employ, out of harness, out of work, released,
   removed, runaway, scattered, scot-free, segregated, separated,
   sequestered, shut off, unattached, uncommitted, unemployable,
   unemployed, unengaged, uninvolved, unoccupied, well out of