immaterial

Immaterial is a synonym of shadowy.

As adjectives the difference between immaterial and shadowy

is that immaterial is having no matter or substance while shadowy is in shadow; darkened by shadows.

As adjectives the difference between immaterial and noumenal

is that immaterial is having no matter or substance while noumenal is of or pertaining to the noumenon or the realm of things as they are in themselves.

As adjectives the difference between immaterial and intangible

is that immaterial is having no matter or substance while intangible is incapable of being perceived by the senses; incorporeal.

As a noun intangible is

anything intangible.

Immaterial is a synonym of unearthly.

As adjectives the difference between immaterial and unearthly

is that immaterial is having no matter or substance while unearthly is not of the earth; non-terrestrial.

As adjectives the difference between airy and immaterial

is that airy is consisting of air; as, an airy substance; the airy parts of bodies while immaterial is having no matter or substance.

As adjectives the difference between immaterial and unrealistic

is that immaterial is having no matter or substance while unrealistic is not realistic.

As adjectives the difference between unsubstantial and immaterial

is that unsubstantial is (archaic) while immaterial is having no matter or substance.

As adjectives the difference between immaterial and illusory

is that immaterial is having no matter or substance while illusory is resulting from an illusion; deceptive, imaginary, unreal.

As adjectives the difference between imaginary and immaterial

is that imaginary is existing only in the imagination while immaterial is having no matter or substance.

As a noun imaginary

is imagination; fancy.

As adjectives the difference between dreamy and immaterial

is that dreamy is as in a dream; resembling a dream while immaterial is having no matter or substance.