Sullen/ˈsʌlən/nounOne who is solitary, or lives alone; a hermit.(chiefly in plural) Sullen feelings or manners; sulks; moroseness.adjectiveHaving a brooding ill temper; sulky.Gloomy; dismal; foreboding.Sluggish; slow.Synonyms: morose, sulky🔗 Explore synonyms & relationships🌍 See word origin & history