sullen

How to sign: showing a brooding ill humor
"a dark scowl"; "the proverbially dour New England Puritan"; "a glum, hopeless shrug"; "he sat in moody silence"; "a morose and unsociable manner"; "a saturnine, almost misanthropic young genius"- Bruce Bliven; "a sour temper;

Similiar / Same: glowering, moody, morose, glum, saturnine, dour, sour, dark