- (a.) Obstinate; intractable.
- (a.) Gloomily angry and silent; cross; sour; affected with ill humor; morose.
- (n.) Sullen feelings or manners; sulks; moroseness; as, to have the sullens.
- (a.) Mischievous; malignant; unpropitious.
- (n.) One who is solitary or lives alone; a hermit.
- (a.) Gloomy; dismal; foreboding.
- (a.) Lonely; solitary; desolate.
- (v.t.) To make sullen or sluggish.
- (a.) Heavy; dull; sluggish.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). sullen. Retrieved September 23, 2026, from http://smartdefine.org/sullen/definitions/2068318 |
| Chicago | Webster's. 2011. "sullen" http://smartdefine.org/sullen/definitions/2068318 (accessed September 23, 2026). |
| Harvard | Webster's 2011, sullen, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/sullen/definitions/2068318>. |
| MLA | Webster's. "sullen" 28 May 2011. Web. 23 September 2026. <http://smartdefine.org/sullen/definitions/2068318> |