blue, dark, depressing, disconsolate, dismal, dispiriting, gloomy, grim

causing dejection; "a blue day"; "the dark days of the war"; "a week of rainy depressing weather"; "a disconsolate winter landscape"; "the first dismal dispiriting days of November"; "a dark gloomy day"; "grim rainy weather"

• cheerless, uncheerful — lacking cheer; depressing