Sullen or unfriendly in appearance.

synonym: beetle-browed.

Roget 901a: sullen, sulky; ill-tempered, ill-humored, ill-affected, ill-disposed; grouty [U.S.]; in an ill temper, in a bad temper, in a shocking temper, in an ill humor, in a bad humor, in a shocking humor; out of temper, out of humor; knaggy^†, torvous^†, crusty, crabbed; sour, sour as a crab; surly etc. (discourteous) 895.    moody; spleenish^†, spleenly^†; splenetic, cankered.    cross, crossgrained^†; perverse, wayward, humorsome^†; restiff^†, restive; cantankerous, intractable, exceptious^†, sinistrous^†, deaf to reason, unaccommodating, rusty, froward; cussed [U.S.].    dogged etc. (stubborn) 606.    grumpy, glum, grim, grum^†, morose, frumpish; in the sulks etc. n.; out of sorts; scowling, glowering, growling; grouchy.    peevish etc. (irascible) 901.    ... show more