nonmaterial vs insubstantial

nonmaterial and insubstantial both are adjectives.

Word	Noun	Adjective	Verb	Adverb
nonmaterial	No	Yes	No	No
insubstantial	No	Yes	No	No

nonmaterial (adjective)	insubstantial (adjective)
not consisting of matter	lacking material form or substance; unreal
	lacking in nutritive value
	lacking solidity or strength