Sullen (adjective)

1. Having a gloomy or surly disposition.
2. Silent and sulky, not wanting to talk or socialize.

Origin:

From old english sūlian, from sūl ("mind, spiri.t")

Examples:

1. He had a sullen expression on his face.
2. She was sullen and refused to speak to anyone.
3. The atmosphere was sullen and oppressive.
4. He was sullen and resentful after the argument.
5. The city was sullen and dark on that rainy day.