black, bleak, chill, Cimmerian, cloudy, cold, comfortless, dark, darkening, depressing, depressive, desolate, dire, disconsolate, dismal, drear, dreary, dreich [chiefly Scottish], elegiac (also elegiacal), forlorn, funereal, gloomy, glum, godforsaken, gray (also grey), lonely, lonesome, lugubrious, miserable, morbid, morose, murky, plutonian, saturnine, sepulchral, solemn, somber (or sombre), sullen, sunless, tenebrific, tenebrous, wretched

blue, dejected, depressed, despondent, down, droopy, hangdog, inconsolable, low, melancholic, melancholy, mirthless, sad, unhappy, woebegone, woeful

dim, discomfiting, discouraging, disheartening, dismaying, dispiriting, distressful, distressing, upsetting

desperate, hopeless,