| billow(obscurity, fogginess, mistiness) |
| cloud(covering, fold, coat, obscurity, layer) |
| cloudiness(obscurity, fogginess, mistiness) |
| cloudy air(expression, obscurity, fogginess, mistiness) |
| coating(covering, fold, coat, cloud, obscurity) |
| covering(coat, obscurity, layer, fogginess, mistiness) |
| darkness(obscurity, fogginess, mistiness) |
| dimness(obscurity, fogginess, mistiness) |
| film(covering, coat, obscurity, layer, fogginess) |
| fog(obscurity, fogginess, mistiness) |
| fogginess(obscurity, mistiness) |
| fold(covering, coat, cloud, obscurity, layer) |
| frost(obscurity, fogginess, mistiness) |
| fumes(obscurity, fogginess, mistiness) |
| fuzziness(obscurity, fogginess, mistiness) |
| gloom(obscurity, fogginess, mistiness) |
| ground clouds(expression, obscurity, fogginess, mistiness) |
| haze(covering, fold, coat, cloud, obscurity) |
| indistinctness(obscurity, fogginess, mistiness) |
| integument(covering, fold, coat, cloud, obscurity) |