young vs inexperient

young is a noun but inexperient is not a noun.

Word	Noun	Adjective	Verb	Adverb
young	Yes	Yes	No	No
inexperient	No	Yes	No	No

young (noun)	inexperient (noun)
any immature animal
young people collectively

young (adjective)	inexperient (adjective)
(used of living things especially persons) in an early period of life or development or growth	lacking practical experience or training
(of crops) harvested at an early stage of development; before complete maturity
not tried or tested by experience
being in its early stage
suggestive of youth; vigorous and fresh