The Collaborative International Dictionary of English v.0.48:

distressed \distressed\ adj.
   1. facing or experiencing financial trouble or difficulty;
      as, distressed companies need loans and technical advice.

   Syn: hard-pressed, hard put, in a bad way(predicate), in
        trouble(predicate).
        [WordNet 1.5]

   2. experienceing a generalized feeling of distress. Also See:
      dejected, unhappy, sad. Antonym: euphoric.

   Syn: dysphoric, unhappy.
        [WordNet 1.5]

   3. suffering severe physical strain or discomfort; as, he
      dropped out of the race, clearly distressed and having
      difficulty breathing.

   Syn: stressed, in a bad way(predicate).
        [WordNet 1.5]

   4. emotionally upset.

   Syn: unstrung.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Distress \Dis*tress"\, v. t. [imp. & p. p. Distressed; p. pr.
   & vb. n. Distressing.] [Cf. OF. destrecier. See Distress,
   n.]
   1. To cause pain or anguish to; to pain; to oppress with
      calamity; to afflict; to harass; to make miserable.
      [1913 Webster]

            We are troubled on every side, yet not distressed.
                                                  --2 Cor. iv.
                                                  8.
      [1913 Webster]

   2. To compel by pain or suffering.
      [1913 Webster]

            Men who can neither be distressed nor won into a
            sacrifice of duty.                    --A. Hamilton.
      [1913 Webster]

   3. (Law) To seize for debt; to distrain.

   Syn: To pain; grieve; harass; trouble; perplex; afflict;
        worry; annoy.
        [1913 Webster]

WordNet (r) 3.0 (2006):

distressed
    adj 1: facing or experiencing financial trouble or difficulty;
           "distressed companies need loans and technical advice";
           "financially hard-pressed Mexican hotels are lowering
           their prices"; "we were hard put to meet the mortgage
           payment"; "found themselves in a bad way financially"
           [syn: distressed, hard-pressed, hard put, in a bad
           way(p)]
    2: generalized feeling of distress [syn: dysphoric,
       distressed, unhappy] [ant: euphoric]
    3: suffering severe physical strain or distress; "he dropped out
       of the race, clearly distressed and having difficulty
       breathing" [syn: stressed, distressed]
    4: afflicted with or marked by anxious uneasiness or trouble or
       grief; "too upset to say anything"; "spent many disquieted
       moments"; "distressed about her son's leaving home"; "lapsed
       into disturbed sleep"; "worried parents"; "a worried frown";
       "one last worried check of the sleeping children" [syn:
       disquieted, distressed, disturbed, upset, worried]

Moby Thesaurus II by Grady Ward, 1.0:

88 Moby Thesaurus words for "distressed":
   abashed, afflicted, agitated, agonized, annoyed, anxious,
   badly off, beset, bothered, cast down, chagrined, chapfallen,
   confused, convulsed, crucified, discomfited, discomforted,
   discomposed, disconcerted, disquieted, distracted, distrait,
   disturbed, down to bedrock, embarrassed, feeling the pinch,
   harassed, hard up, harrowed, hung up, hurt, hurting, ill at ease,
   ill off, impecunious, in Queer Street, in distress,
   in narrow circumstances, in pain, in reduced circumstances,
   in straitened circumstances, inconvenienced, irked, lacerated,
   land-poor, martyred, martyrized, mortified, narrow, on the edge,
   on the rack, out of countenance, out of pocket, pained, perturbed,
   pinched, plagued, poor, poorly off, put to it, put-out, put-upon,
   puzzled, racked, reduced, short, short of cash, short of funds,
   short of money, sore beset, squeezed, straitened, strapped,
   suffering, tormented, tortured, troubled, twisted, uncomfortable,
   under the harrow, uneasy, unmoneyed, unprosperous, upset, vexed,
   worried, wounded, wrung