| concealed(adjective, uncertain, equivocal, incomprehensible) |
| crepuscular(adjective, unlit, lightless) |
| cryptic(adjective, uncertain, equivocal, incomprehensible) |
| difficult(adjective, uncertain, equivocal, incomprehensible) |
| dingy(dark, gloomy, misty) |
| drab(dark, gloomy, misty) |
| dreary(dark, gloomy, dirty, misty, stormy) |
| dun(adjective, dark, gloomy, dirty, dreary) |
| dusk(dark, gloomy, misty, unlit, lightless) |
| enigmatic(adjective, uncertain, equivocal, incomprehensible) |
| equivocal(adjective, uncertain, incomprehensible) |
| filmy |
| filthy(dark, gloomy, dirty, dreary, misty) |
| foul(dark, gloomy, dirty, dreary, misty) |
| frosty |
| fuzzy(dark, gloomy, dirty, dreary, misty) |
| glowering(dark, gloomy, dirty, dreary, misty) |
| gray(dark, gloomy, dirty, dreary, misty) |
| grubby(dark, gloomy, dirty, dreary, misty) |
| ill-lighted(adjective, unlit, lightless) |