aeriform vs insubstantial

aeriform and insubstantial both are adjectives.

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

aeriform (adjective)	insubstantial (adjective)
resembling air or having the form of air	lacking material form or substance; unreal
characterized by lightness and insubstantiality; as impalpable or intangible as air	lacking in nutritive value
	lacking solidity or strength