Morose

Part of speech: adjective (a.)

1. Of a sour temper; sullen and austere; ill-humored; severe. "A morose and affected taciturnity." I. Watts.

2. Lascivious; brooding over evil thoughts. [Obs.]

Synonyms: Sullen; gruff; severe; austere; gloomy; crabbed; crusty; churlish; surly; ill-humored.