Synonyms of bleak

1 Syllable
gaunt, dour, cold, chill, blank, harsh, flat, bare, raw, grim, drab, wild
2 Syllables
joyless, harshest, adusk, twilit, harsher, coldest, windswept, scratchy, dourer, gaunter, mopey, stripped, algid, frore, hiemal, cleared, rimy, sleety, dusky, broody, colder, drearier, blighted, dreary, cheerless, gloomier, brumal, biting, open, let-down, scorched, wintrier, chiller, duskier, somber, burned, squawky, drabbest, desert, drabber, bombed, grimmer, wintry, grimmest, gauntest, chilly, scratchier, gloomy
3 Syllables
bulldozed, funereal, chapfallen, deserted, hibernal, unhappiest, austere, siberian, unhappy, depressing, sepulchral, sterile, icebox, out-of-key, out-of-tune, tuneless, unhappier, dejected, exposed
4 Syllables
down-in-the-mouth, woebegone, oppressive, desolated, unfurnished, pessimistic, uncreative, unprolific, weather-beaten, depressive, overclouded, drearisome, discouraging, dirgelike, fatalistic, acheronian, acherontic, tenebrific, desolating, deforested, desolate, sanitized, unsheltered, unmelodious
5 Syllables
uninventive, superincumbent, unpopulated