animate thing vs immature

animate thing is a noun but immature is not a noun.

Word	Noun	Adjective	Verb	Adverb
animate thing	Yes	No	No	No
immature	No	Yes	No	No

animate thing (noun)	immature (noun)
a living (or once living) entity

animate thing (adjective)	immature (adjective)
	not yet mature
	characteristic of a lack of maturity
	(used of living things especially persons) in an early period of life or development or growth
	(of birds) not yet having developed feathers
	not fully developed or mature; not ripe