| forlorn(dull, dark, gloomy, miserable, dim) |
| foul(adjective, dark, gloomy, dirty, dreary) |
| generalized(adjective, unclear, indistinct, indistinguishable) |
| glowering(dark, gloomy, misty) |
| grave(adjective, dull, dark, sorrow, gloomy) |
| gruff(adjective, sorrow, depress, sadness, emotion) |
| inauspicious(adjective, dull, gloomy, miserable) |
| incoherent(adjective, obscure) |
| indeterminate(unclear, hazy, indistinct, indistinguishable) |
| indistinguishable(adjective, obscure, vague, unclear, hazy) |
| inexact |
| lackluster(adjective, dull, dark, gloomy, faint) |
| limpid(adjective, semitransparent) |
| lonely(adjective, bleak, black, chill, cheerless) |
| lusterless |
| mat(adjective, dull, dark, gloomy, faint) |
| melancholy(adjective, sorrow, depress, sadness, emotion) |
| misted |
| morose(adjective, sorrow, depress, sadness, emotion) |
| mournful(adjective, sorrow, depress, sadness, emotion) |