sul·len /ˈsʌlən/
  (a.)慍怒的,沈沈不樂的,陰沈的
  Sul·len a.
  1. Lonely; solitary; desolate. [Obs.]
  2. Gloomy; dismal; foreboding.
     Solemn hymns so sullen dirges change.   --Shak.
  3. Mischievous; malignant; unpropitious.
     Such sullen planets at my birth did shine.   --Dryden.
  4. Gloomily angry and silent; cross; sour; affected with ill humor; morose.
     And sullen I forsook the imperfect feast.   --Prior.
  5. Obstinate; intractable.
     Things are as sullen as we are.   --Tillotson.
  6. Heavy; dull; sluggish. “The larger stream was placid, and even sullen, in its course.”
  Syn: -- Sulky; sour; cross; ill-natured; morose; peevish; fretful; ill-humored; petulant; gloomy; malign; intractable.
  Usage: Sullen, Sulky. Both sullen and sulky show themselves in the demeanor. Sullenness seems to be an habitual sulkiness, and sulkiness a temporary sullenness. The former may be an innate disposition; the latter, a disposition occasioned by recent injury. Thus we are in a sullen mood, and in a sulky fit.
  No cheerful breeze this sullen region knows;
  The dreaded east is all the wind that blows.   --Pope.
  -- Sul*len*ly, adv. -- Sul*len*ness, n.
  Sul·len, n.
  1. One who is solitary, or lives alone; a hermit. [Obs.]
  2. pl. Sullen feelings or manners; sulks; moroseness; as, to have the sullens. [Obs.]
  Sul·len, v. t. To make sullen or sluggish. [Obs.]
     Sullens the whole body with . . . laziness.   --Feltham.
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  sullen
       adj 1: showing a brooding ill humor; "a dark scowl"; "the
              proverbially dour New England Puritan"; "a glum,
              hopeless shrug"; "he sat in moody silence"; "a morose
              and unsociable manner"; "a saturnine, almost
              misanthropic young genius"- Bruce Bliven; "a sour
              temper"; "a sullen crowd" [syn: dark, dour, glowering,
               glum, moody, morose, saturnine, sour]
       2: darkened by clouds; "a heavy sky" [syn: heavy, lowering,
           threatening]