| darkness(noun, light, shade, dark, uncertainty) |
| dimness(noun, place, light, shade, dark) |
| night(noun, place, part, shade, informal) |
| abstruseness(noun, uncertainty, vagueness, complexity, secrecy) |
| ambiguity(noun, state, quality, clear, uncertainty) |
| vagueness(noun, state, quality, clear, doubt) |
| cloudiness(noun, state, place, quality, clear) |
| opacity(noun, place, shade, uncertainty, gloom) |
| shadow(noun, shade, dark, darkness, silhouette) |
| gloom(noun, place, shade, dark, black) |
| murkiness(noun, place, light, shade, dark) |
| blackness(noun, place, shade, dark, extinction) |
| complexity(noun, difficulty, complexity, incomprehensibility) |
| haziness(noun, uncertainty, gloom, veil, vagueness) |
| obscureness(noun, state, quality, clear, light) |
| ambiguousness(noun, state, quality, clear, vagueness) |
| dark(noun, time, place, light, shade) |
| fog(noun, uncertainty, gloom, darkness, puff) |
| indefiniteness(noun, state, quality, clear, disorder) |
| intricacy(noun, complexity) |