Sombre
/ˈsɒmbə/
noun
Gloom; obscurity; duskiness.
verb
To make sombre or dark; to make shady.
adjective
Dark; gloomy; shadowy, dimly lit.
Dull or dark in colour or brightness.
Melancholic, gloomy, dreary, dismal; grim.
Synonyms: dire, dismal, dreary, melancholy