nebulosity

noun 0.805

nebulousness

noun 0.732

nebula

noun 0.715

nebulin

noun 0.674

neb

noun 0.653

nebulizer

noun 0.626

nimbostratus

noun 0.610

nebulization

noun 0.601

nimbus

noun 0.588

obscurer

noun 0.556

cloudiness

noun 0.546

obscurant

noun 0.546

fog

noun 0.539

unclearness

noun 0.534

planetary nebula

noun 0.532

mistiness

noun 0.531

haze

noun 0.522

haziness

noun 0.519

cumulonimbus

noun 0.518

cumulus

noun 0.516

fogginess

noun 0.510

nebbish

noun 0.507

molecular cloud

noun 0.506

cloud cover

noun 0.506

brume

noun 0.502