unfledged vs immature

unfledged and immature both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unfledged	No	Yes	No	No
immature	No	Yes	No	No

As adjectives, unfledged and immature are synonyms defined as:

unfledged (adjective)	immature (adjective)
(of birds) not yet having developed feathers	not yet mature
young and inexperienced	characteristic of a lack of maturity
(of an arrow) not equipped with feathers	(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