郁闷 (yù mèn): 우울하다.

It rained for several days in a row and I couldn't go anywhere, so I felt really gloomy.

He thought he would pass the exam, but he was two points short; he was so depressed that he didn't even want to eat.

When she encounters something unpleasant at work, she chats with friends to vent her gloomy feelings.

Staying home alone on the weekend with no one to talk to, he felt a bit gloomy.

Hearing that their team lost, the fans were all very depressed and were unwilling to leave the stadium for a long time.