Broodingly and sullenly unhappy
"I don't mean to sound morose," he said with a smile.
His face suddenly took on a morose expression.
When he came in to tea, silent, morose, and with tear-stained face, everybody pretended not to notice anything.
The popular notion that Bentham was a morose visionary is far removed from fact.
Those about him had never seen the count so morose and irritable.