delinquent vs due

delinquent and due both are nouns.

Word	Noun	Adjective	Verb	Adverb
delinquent	Yes	Yes	No	No
due	Yes	Yes	No	Yes

delinquent (noun)	due (noun)
a young offender	that which is deserved or owed
	a payment that is due (e.g., as the price of membership)

delinquent (adjective)	due (adjective)
past due; not paid at the scheduled time	owed and payable immediately or on demand
guilty of a misdeed	suitable to or expected in the circumstances
failing in what duty requires	capable of being assigned or credited to
	scheduled to arrive

delinquent (adverb)	due (adverb)
	directly or exactly; straight