insubstantial

As adjectives the difference between noumenal and insubstantial

is that noumenal is of or pertaining to the noumenon or the realm of things as they are in themselves while insubstantial is lacking substance; not real or strong.

As adjectives the difference between insubstantial and spectral

is that insubstantial is lacking substance; not real or strong while spectral is having the appearance of a spectre; ghostly.

Incorporeal is a related term of insubstantial.

As adjectives the difference between incorporeal and insubstantial

is that incorporeal is having no material form or physical substance while insubstantial is lacking substance; not real or strong.

Insubstantial is a synonym of unsound.

As adjectives the difference between insubstantial and unsound

is that insubstantial is lacking substance; not real or strong while unsound is not sound; not whole; not solid; defective; infirm; diseased.

Lean is a related term of insubstantial.

As a proper noun lean

is .

As an adjective insubstantial is

lacking substance; not real or strong.

Insubstantial is a synonym of ethereal.

As adjectives the difference between insubstantial and ethereal

is that insubstantial is lacking substance; not real or strong while ethereal is pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; otherworldly; as, ethereal space; ethereal regions.

Insubstantial is a related term of unbodied.

As adjectives the difference between insubstantial and unbodied

is that insubstantial is lacking substance; not real or strong while unbodied is (archaic) disembodied; without a body; separated from the body.

Insubstantial is a related term of unearthly.

As adjectives the difference between insubstantial and unearthly

is that insubstantial is lacking substance; not real or strong while unearthly is not of the earth; non-terrestrial.

Insubstantial is a related term of stinted.

As adjectives the difference between insubstantial and stinted

is that insubstantial is lacking substance; not real or strong while stinted is (dated) constrained; restrained; confined.

As a verb stinted is

(stint).

As adjectives the difference between sparse and insubstantial

is that sparse is having widely spaced intervals while insubstantial is lacking substance; not real or strong.

As a verb sparse

is to scatter; to disperse.