fledgling vs inexperient

fledgling is a noun but inexperient is not a noun.

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

fledgling (noun)	inexperient (noun)
young bird that has just fledged or become capable of flying
any new participant in some activity

fledgling (adjective)	inexperient (adjective)
(of a young bird) having acquired its flight feathers	lacking practical experience or training
young and inexperienced