sombre

adj.

[1]	gloomy , drab , sober , morose , lugubrious , somber , funereal , morbid , louring/lowering , melancholy , sad , dismal , unhappy , cheerless , joyless , serious , sober , doleful , dolorous , mournful , depressed , depressing , grave , grim , grim-faced , grim-visaged , (Literary) melancholic , darksome
[2]	dark , somber , melancholy , gloomy , foreboding , bleak , depressing , shadowy , murky , leaden , grey , black , dismal , dreary , overcast , dusky , dim , dingy , darkling , dull , subfusc/subfuscous
[3]	staid , sedate , sober , solemn , dark , dull , subfusc