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English definition of “sullen”

sullen

adjective     /ˈsʌl.ən/
angry and unwilling to smile or be pleasant to people: His daughters stared back at him with an expression of sullen resentment.literary She looked up at the sullen (= dark and unpleasant) sky and shuddered.Not being friendlyNot saying muchBlunt and direct in speech and behaviour sullenly     /-li/ adverb She turned her back to him and stared sullenly out of the window.Not being friendlyNot saying muchBlunt and direct in speech and behaviour sullenness     /-nəs/ noun [U] Not being friendlyNot saying muchBlunt and direct in speech and behaviour
(Definition of sullen adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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