Synonyms of sulk
poutIf someone pouts, they stick out their lips, usually in order to show that they are annoyed or to make themselves sexually attractive.
• He whined and pouted like a kid when he didn't get what he wanted.
Thesaurus for sulk from the Collins English Thesaurus
to be silent and resentful because of a wrong done to one, esp in order to gain sympathy; brood sullenly