Broodingly and sullenly unhappy
Characterized by or expressive of a foreboding somberness
Vinnie was as sullen as a three-year-old.
Betsy remained sullen through the week until Thursday night when I came home to find her in tears.
The latter was riding with a sullen expression on his face.
Every cheery thing I said to her seemed to bounce right off her sullen attitude.
The state of sullen dislike which followed was after a while succeeded by more active evidences of hostility.