outsulk

/aʊtˈsʌlk/
verb
  1. To sulk longer or more effectively than someone else; to remain in a sullen mood longer than another person.
    • The two friends had a contest to see who could outsulk the other after their disagreement.
    • After the argument, my little brother tried to outsulk me, but I ignored him.
    • She could outsulk anyone in the family, staying silent for hours.
Synonyms
What does "outsulk" mean? | whatsthatwordmean | whatsthatwordmean