[syn: blue, dark, dingy, disconsolate, dismal, gloomy, grim, sorry, drab, drear, dreary]
The Collaborative International Dictionary of English v.0.48:
Sorry \Sor"ry\, a. [Compar. Sorrier; superl. Sorriest.] [OE.
   sory, sary, AS. s[=a]rig, fr. s[=a]r, n., sore. See Sore,
   n. & a. The original sense was, painful; hence, miserable,
   sad.]
   1. Grieved for the loss of some good; pained for some evil;
      feeling regret; -- now generally used to express light
      grief or affliction, but formerly often used to express
      deeper feeling. "I am sorry for my sins." --Piers Plowman.
      [1913 Webster]
            Ye were made sorry after a godly manner. --2 Cor.
                                                  vii. 9.
      [1913 Webster]
            I am sorry for thee, friend; 't is the duke's
            pleasure.                             --Shak.
      [1913 Webster]
            She entered, were he lief or sorry.   --Spenser.
      [1913 Webster]
   2. Melancholy; dismal; gloomy; mournful. --Spenser.
      [1913 Webster]
            All full of chirking was this sorry place.
                                                  --Chaucer.
      [1913 Webster]
   3. Poor; mean; worthless; as, a sorry excuse. "With sorry
      grace." --Chaucer.
      [1913 Webster]
            Cheeks of sorry grain will serve.     --Milton.
      [1913 Webster]
            Good fruit will sometimes grow on a sorry tree.
                                                  --Sir W.
                                                  Scott.
      [1913 Webster]
   Syn: Hurt; afflicted; mortified; vexed; chagrined;
        melancholy; dismal; poor; mean; pitiful.
        [1913 Webster]
WordNet (r) 3.0 (2006):
sorry
    adj 1: feeling or expressing regret or sorrow or a sense of loss
           over something done or undone; "felt regretful over his
           vanished youth"; "regretful over mistakes she had made";
           "he felt bad about breaking the vase" [syn: regretful,
           sorry, bad] [ant: unregretful, unregretting]
    2: bad; unfortunate; "my finances were in a deplorable state";
       "a lamentable decision"; "her clothes were in sad shape"; "a
       sorry state of affairs" [syn: deplorable, distressing,
       lamentable, pitiful, sad, sorry]
    3: without merit; "a sorry horse"; "a sorry excuse"; "a lazy no-
       count, good-for-nothing goldbrick"; "the car was a no-good
       piece of junk" [syn: good-for-nothing, good-for-naught,
       meritless, no-account, no-count, no-good, sorry]
    4: causing dejection; "a blue day"; "the dark days of the war";
       "a week of rainy depressing weather"; "a disconsolate winter
       landscape"; "the first dismal dispiriting days of November";
       "a dark gloomy day"; "grim rainy weather" [syn: blue,
       dark, dingy, disconsolate, dismal, gloomy, grim,
       sorry, drab, drear, dreary]
Moby Thesaurus II by Grady Ward, 1.0:
119 Moby Thesaurus words for "sorry":
   abject, apologetic, ashamed, bad, base, base-minded, beggarly,
   beneath contempt, beneath one, cheap, cheerless, cheesy, common,
   compunctious, conscience-smitten, conscience-stricken,
   contemptible, contrite, crummy, debasing, degrading, demeaning,
   deplorable, depressing, despicable, discontented, disgraceful,
   dismal, full of remorse, gaudy, gimcracky, grim, gutter,
   heavyhearted, humiliating, humiliative, humorless, ignoble,
   ill-starred, in bad humor, inadequate, infestive, infra dig,
   infra indignitatem, joyless, low, low-minded, mean, melancholy,
   meretricious, mirthless, miserable, opprobrious, out of humor,
   out of sorts, outrageous, paltry, pathetic, penitent, penitential,
   pitiable, pitiful, pleasureless, poor, regretful, remorseful,
   repentant, repining, rubbishy, rueful, sad, saddened, scandalous,
   scrubby, scruffy, scummy, scurvy, scuzzy, self-accusing,
   self-condemning, self-convicting, self-debasing, self-flagellating,
   self-humiliating, self-punishing, self-reproaching, shabby,
   shamefaced, shamefast, shameful, shocking, shoddy, sordid,
   sorrowful, sorryish, star-crossed, stark, too bad, trashy,
   trifling, trumpery, two-for-a-cent, two-for-a-penny, twopenny,
   twopenny-halfpenny, unbecoming, uncheerful, uncheery, unhappy,
   unhappy about, unjoyful, unmirthful, unsmiling, unworthy of one,
   valueless, vile, wistful, worthless, wretched