nebulous

Nebulous is a synonym of indefinite.

As adjectives the difference between nebulous and indefinite

is that nebulous is in the form of a cloud or haze; hazy while indefinite is without limit; forever, or until further notice; not definite.

As adjectives the difference between nebulous and uncertain

is that nebulous is in the form of a cloud or haze; hazy while uncertain is not certain; unsure.

As a verb beclouded

is past tense of becloud.

As an adjective nebulous is

in the form of a cloud or haze; hazy.

Filmy is a related term of nebulous.

As adjectives the difference between filmy and nebulous

is that filmy is resembling or made of a thin film; gauzy while nebulous is in the form of a cloud or haze; hazy.

As adjectives the difference between opaque and nebulous

is that opaque is neither reflecting nor emitting light while nebulous is in the form of a cloud or haze; hazy.

As a noun opaque

is an area of darkness; a place or region with no light.

As a verb opaque

is to make, render (more) opaque.

As adjectives the difference between nebulous and early

is that nebulous is in the form of a cloud or haze; hazy while early is at a time in advance of the usual or expected event.

As an adverb early is

at a time before expected; sooner than usual.

As a noun early is

a shift (scheduled work period) that takes place early in the day.

As adjectives the difference between nebulous and cryptic

is that nebulous is in the form of a cloud or haze; hazy while cryptic is having hidden meaning.

As a noun cryptic is

(informal) a cryptic crossword.

As a noun nebulosus

is (meteorology) a cloud species which consists of a veil of cloud, showing no distinct details associated with cirrostratus, and stratus genera.

As an adjective nebulous is

in the form of a cloud or haze; hazy.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective nebulous is

in the form of a cloud or haze; hazy.