neglectful vs derelict

neglectful is not a noun while derelict is a noun.

Word	Noun	Adjective	Verb	Adverb
neglectful	No	Yes	No	No
derelict	Yes	Yes	No	No

As adjectives, neglectful and derelict are synonyms defined as:

Other synonyms of neglectful include delinquent, remiss.

neglectful (noun)	derelict (noun)
	a ship abandoned on the high seas
	a person without a home, job, or property

neglectful (adjective)	derelict (adjective)
failing in what duty requires	in deplorable condition
not showing due care or attention	failing in what duty requires
	forsaken by owner or inhabitants
	worn and broken down by hard use