sul·len 
/ˈsʌlən/ adjective
/ˈsʌlən/ adjective [more sullen; most sullen] 1 — used to describe an angry or unhappy person who does not want to talk, smile, etc. ▪ sullen teenagers ▪ He's in a sullen mood. ▪ She sat in sullen silence. ▪ His face was sullen. = He had a sullen expression on his face. 2 literary : gray and dark
▪ a sullen [=gloomy] sky/morning
▪ a sullen [=gloomy] sky/morning
— sul·len·ly adverb
▪ He stared sullenly out the window.
▪ He stared sullenly out the window.
— sul·len·ness /ˈsʌlənnəs/ noun [noncount]
/ˈsʌlənnəs/ noun [noncount]
