ametabolic vs nonmetamorphic

ametabolic and nonmetamorphic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
ametabolic	No	Yes	No	No
nonmetamorphic	No	Yes	No	No

ametabolic (adjective)	nonmetamorphic (adjective)
undergoing slight or no metamorphosis	not metamorphic
undergoing no (or only slight) metamorphosis