The Collaborative International Dictionary of English v.0.48:

Discompose \Dis`com*pose"\, v. t. [imp. & p. p. Discomposed;
   p. pr. & vb. n. Discomposing.] [Pref. dis- + compose: cf.
   OF. decomposer, F. d['e]composer.]
   1. To disarrange; to interfere with; to disturb; to disorder;
      to unsettle; to break up.
      [1913 Webster]

            Or discomposed the headdress of a prude. --Pope.
      [1913 Webster]

   2. To throw into disorder; to ruffle; to destroy the
      composure or equanimity; to agitate.
      [1913 Webster]

            Opposition . . . discomposeth the mind's serenity.
                                                  --Glanvill.
      [1913 Webster]

   3. To put out of place or service; to discharge; to displace.
      [Obs.] --Bacon.

   Syn: To disorder; derange; unsettle; disturb; disconcert;
        agitate; ruffle; fret; vex.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Discomposed \Dis`com*posed"\, a.
   Disordered; disturbed; disquieted. -- Dis`com*pos"ed*ly,
   adv. -- Dis`com*pos"ed*ness, n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

discomposed
    adj 1: having your composure disturbed; "looked about with a
           wandering and discomposed air" [ant: composed]

Moby Thesaurus II by Grady Ward, 1.0:

108 Moby Thesaurus words for "discomposed":
   abashed, abroad, adrift, afflicted, agitated, amiss, askew, astray,
   at sea, awry, balled-up, beset, bewildered, bothered, cast down,
   chagrined, chaotic, chapfallen, clueless, cockeyed, confused,
   convulsed, deranged, disarranged, discomfited, discomforted,
   disconcerted, dislocated, dismayed, disordered, disorderly,
   disorganized, disoriented, disquieted, distracted, distraught,
   distressed, disturbed, embarrassed, excited, feverish, fidgety,
   flurried, flustered, fluttered, fussed, guessing, haywire, hung up,
   ill at ease, in a fix, in a jumble, in a maze, in a pickle,
   in a pother, in a pucker, in a scrape, in a stew, in a sweat,
   in a swivet, in a tizzy, in disorder, jittery, jumbled, jumpy,
   lost, mazed, misplaced, mixed-up, mortified, nervous, nervy,
   off the track, on the fritz, out of countenance, out of gear,
   out of joint, out of kelter, out of kilter, out of order,
   out of place, out of tune, out of whack, perplexed, perturbed,
   put-out, put-upon, rattled, restless, roily, ruffled, shaken,
   shaken up, shook, shuffled, stirred up, troubled, troublous,
   turbid, turbulent, turned around, uncomfortable, uneasy,
   unpeaceful, unquiet, unsettled, upset, without a clue