Pronunciation: /ˈsʌlən/
adjective showing irritation or ill humor by a gloomy silence or reserve
A1 She looked sullen after losing the game.
A2 The sullen teenager refused to talk to anyone.
B1 His sullen attitude made it difficult to work with him.
B2 The sullen expression on her face hinted at deeper emotions.
C1 Despite his sullen demeanor, he was actually a very kind person.
C2 Her sullen mood lifted when she received good news.
formal The sullen expression on her face indicated that she was not in a good mood.
informal He sat in the corner looking sullen and refusing to talk to anyone.
slang She gave me a sullen look before storming off.
figurative The dark clouds in the sky cast a sullen shadow over the town.
sullened
sullens
more sullen
most sullen
sullens
will sullen
have sullened
is sullening
sullen
sullen
to sullen
sullening
sullening