gloomily, sullenly, grimly, scowlingly, frowningly
dimly, gloomily, duskily
gloomily, somberly, sullenly, grimly
Он мрачно посмотрел на нас и промолчал.
He looked at us grimly and said nothing.
Старик угрюмо кивнул и ушёл.
The old man nodded grimly and left.
