Definition of sullen adjective from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈsʌlən//
    ; NAmE NAmE//ˈsʌlən//
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  1. 1bad-tempered and not speaking, either on a particular occasion or because it is part of your character Bob looked pale and sullen. She gave him a sullen glare. sullen teenagers He lapsed into a sullen silence.
  2. 2(literary) (of the sky or weather) dark and unpleasant a sullen grey sky
  3. Word OriginMiddle English (in the senses ‘solitary, averse to company’, and ‘unusual’): from Anglo-Norman French sulein, from sol ‘sole’.
See the Oxford Advanced American Dictionary entry: sullen