gloom

fe’l verb

1. To be dark or gloomy.
2. To look or feel sad, sullen or despondent.
3. To render gloomy or dark; to obscure; to darken.
4. To fill with gloom; to make sad, dismal, or sullen.

ot noun

1. Darkness, dimness or obscurity. the gloom of a forest, or of midnight
2. A melancholic, depressing or despondent atmosphere.
3. Cloudiness or heaviness of mind; melancholy; aspect of sorrow; low spirits; dullness.
4. A drying oven used in gunpowder manufacture.