Gloomy (adjective)

1. Dark or dim; obscure.
2. Sad, gloomy or melancholy.
3. Unpleasant or ominous.

Origin:

Middle english glomie, from old english glōmīġ ("dark, gloomy"), from proto-germanic *glōmijaz ("dark, gloomy"), from proto-indo-european *glem- ("to be dark"). cognate with dutch gloed, german glut, danish glød.

Examples:

1. The room was gloomy as the curtains were drawn.
2. She felt gloomy after hearing the news.
3. The sky is gloomy, it might rain.
4. The gloomy forest made it seem spooky.
5. The gloomy economic outlook made people anxious about the future.