[syn: blue, dark, dingy, disconsolate, dismal, gloomy, grim, sorry, drab, drear, dreary]
The Collaborative International Dictionary of English v.0.48:
Dingy \Din"gy\ (d[i^]n"j[y^]), a. [Compar. Dingier; superl.
   Dingiest.] [Prob. fr. dung. Cf. Dungy.]
   Soiled; sullied; of a dark or dusky color; dark brown; dirty.
   "Scraps of dingy paper." --Macaulay.
   [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Dingey \Din"gey\, Dingy \Din"gy\, Dinghy \Din"ghy\, n. [Bengalee
   dingi.]
   1. a small boat propelled by oars or sails, used in the East
      Indies, in sheltered waters. [Written also dinghey.]
      --Malcom.
      [1913 Webster]
   2. a small boat intended to be used as a tender or lifeboat,
      carried or towed by a ship. It may be propelled by oars,
      sail, or a motor.
      [PJC]
   3. a small boat of shallow draft with cross thwarts for seats
      and rowlocks for oars with which it is propelled.
   Syn: dory, rowboat.
        [WordNet 1.5]
WordNet (r) 3.0 (2006):
dingy
    adj 1: thickly covered with ingrained dirt or soot; "a miner's
           begrimed face"; "dingy linen"; "grimy hands"; "grubby
           little fingers"; "a grungy kitchen" [syn: begrimed,
           dingy, grimy, grubby, grungy, raunchy]
    2: (of color) discolored by impurities; not bright and clear;
       "dirty" is often used in combination; "a dirty (or dingy)
       white"; "the muddied grey of the sea"; "muddy colors";
       "dirty-green walls"; "dirty-blonde hair" [syn: dirty,
       dingy, muddied, muddy]
    3: 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:
148 Moby Thesaurus words for "dingy":
   Quaker-colored, achromatic, achromic, acier, anemic, ashen, ashy,
   besmirched, bled white, bloodless, blotchy, broken-down,
   cadaverous, canescent, cheerless, chloranemic, cinereous, cinerous,
   colorless, dapple, dapple-gray, dappled, dappled-gray, dark, dead,
   deadly pale, deathly pale, depressing, dilapidated, dim, dimmed,
   dirty, discolored, dismal, dove-colored, dove-gray, down-at-heel,
   drab, dreary, dull, dusky, dusty, etiolated, exsanguinated,
   exsanguine, exsanguineous, faded, faint, fallow, flat, fuliginous,
   ghastly, glaucescent, glaucous, gloomy, gray, gray-black,
   gray-brown, gray-colored, gray-drab, gray-green, gray-spotted,
   gray-toned, gray-white, grayed, grayish, grimy, griseous, grizzle,
   grizzled, grizzly, grubby, grungy, haggard, hueless, hypochromic,
   iron-gray, lackluster, lead-gray, leaden, livid, lurid, lusterless,
   mat, mealy, messy, miry, mouse-colored, mouse-gray, mousy, muddy,
   murky, neutral, pale, pale as death, pale-faced, pallid, pasty,
   pearl, pearl-gray, pearly, run-down, sad, sallow, scruffy, seedy,
   shabby, shadowy, sickly, silver, silver-gray, silvered, silvery,
   slate-colored, slaty, slovenly, smirched, smirchy, smoke-gray,
   smoky, smudgy, smutchy, smutty, snuffy, sober, soiled, somber,
   sooty, steel-gray, steely, stone-colored, sullied, tacky,
   tallow-faced, tarnished, taupe, tenebrous, threadbare, tired,
   toneless, uncolored, untidy, wan, washed-out, waxen, weak,
   whey-faced, white