obsessive vs neurotic

obsessive and neurotic both are nouns.

Word	Noun	Adjective	Verb	Adverb
obsessive	Yes	Yes	No	No
neurotic	Yes	Yes	No	No

As nouns, neurotic is a hypernym of obsessive; that is, neurotic is a word with a broader meaning than obsessive:

Other hypernyms of obsessive include mental case, psychoneurotic.

obsessive (noun)	neurotic (noun)
a person who has obsessions	a person suffering from neurosis

obsessive (adjective)	neurotic (adjective)
characterized by or constituting an obsession	affected with emotional disorder
	characteristic of or affected by neurosis