[1] : The Collaborative International Dictionary of English v.0.48

depress \depress"\, v. t. imp.  p. p. depressed; p. pr. 
   vb. n. depressing. l. depressus, p. p. of deprimere; de-
   + premere to press. see press.
   1. to press down; to cause to sink; to let fall; to lower;
      as, to depress the muzzle of a gun; to depress the eyes.
      "with lips depressed." --tennyson.
      1913 webster

   2. to bring down or humble; to abase, as pride.
      1913 webster

   3. to cast a gloom upon; to sadden; as, his spirits were
      depressed.
      1913 webster

   4. to lessen the activity of; to make dull; embarrass, as
      trade, commerce, etc.
      1913 webster

   5. to lessen in price; to cause to decline in value; to
      cheapen; to depreciate.
      1913 webster

   6. math. to reduce an equation in a lower degree.
      1913 webster

   to depress the pole naut., to cause the sidereal pole to
      appear lower or nearer the horizon, as by sailing toward
      the equator.

   syn: to sink; lower; abase; cast down; deject; humble;
        degrade; dispirit; discourage.
        1913 webster
see also:
depressed depressing press to depress the pole 

[2] : WordNet (r) 2.0

depressing
     adj 1: 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, disconsolate, dismal,
             dispiriting, gloomy, grim
     2: causing or suggestive of sorrow or gloom; "a gloomy
        outlook"; "gloomy news" syn: depressive, gloomy, saddening
see also:
blue dark disconsolate dismal dispiriting gloomy 
grim depressive saddening 

[3] : Moby Thesaurus II by Grady Ward, 1.0

51 moby thesaurus words for "depressing":
   affecting, afflictive, bitter, black, bleak, cheerless,
   comfortless, deplorable, depressant, depressive, discomforting,
   discouraging, disheartening, dismal, dismaying, dispiriting,
   distressful, distressing, dolorific, dolorogenic, dolorous, down,
   dreary, funereal, grievous, joyless, lamentable, melancholic,
   melancholy, mournful, moving, oppressive, painful, pathetic,
   piteous, pitiable, poignant, regrettable, rueful, sad, saddening,
   sharp, somber, sore, sorrowful, touching, triste, uncomfortable,
   woebegone, woeful, wretched

Depressing >> D Words
Depressing, definition of term: Depressing
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