sexuality vs femaleness

sexuality and femaleness both are nouns.

Word	Noun	Adjective	Verb	Adverb
sexuality	Yes	No	No	No
femaleness	Yes	No	No	No

As nouns, femaleness is a hyponym of sexuality; that is, femaleness is a word with a more specific, narrower meaning than sexuality:

sexuality: the properties that distinguish organisms on the basis of their reproductive roles
femaleness: the properties characteristic of the female sex

Other hyponyms of sexuality include maleness, masculinity, androgyny, bisexuality, hermaphroditism, feminineness.

sexuality (noun)	femaleness (noun)
the properties that distinguish organisms on the basis of their reproductive roles	the properties characteristic of the female sex