| open(uncertain, shaky, vague, unclear, ambiguous) |
| overshadowed(verb, obscured) |
| pale |
| problematical(adjective, clear, certain, ambiguous) |
| rayless(adjective, dull, dark, gloomy, dim) |
| recondite(obscure, dark, secret, unknown, hidden) |
| screened(dull, obscure, dark, dim, unknown) |
| sequestered(obscure, dark, secret, unknown, hidden) |
| slate(adjective, dull, obscure, lead, dark) |
| smoky(adjective, dull, obscure, lead, grim) |
| soupy(dull, obscure, dim, cloudy, hazy) |
| steamed(noun, verb, misted) |
| swathed |
| troubled(adjective, anxious, worried, apprehensive, hacked) |
| under an eclipse(expression, idiom, concealment) |
| under cover(expression, obscure, dark, unseen) |
| under wraps(expression, clandestine, underground, undisclosed) |
| unhappy(sad, miserable, adversity, dejection) |
| unknown(adjective, obscure, dark, anxious, worried) |
| unlighted(adjective, dull, dark, gloomy, dim) |