feminineness vs feminine

feminineness and feminine both are nouns.

Word	Noun	Adjective	Verb	Adverb
feminineness	Yes	No	No	No
feminine	Yes	Yes	No	No

feminineness (noun)	feminine (noun)
the properties characteristic of the female sex	a gender that refers chiefly (but not exclusively) to females or to objects classified as female

feminineness (adjective)	feminine (adjective)
	associated with women and not with men
	female (of grammatical gender)
	befitting or characteristic of a woman especially a mature woman
	(music or poetry) ending on an unaccented beat or syllable