queerness vs sexual activity

queerness and sexual activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
queerness	Yes	No	No	No
sexual activity	Yes	No	No	No

As nouns, sexual activity is a hypernym of queerness; that is, sexual activity is a word with a broader meaning than queerness:

queerness: a sexual attraction to (or sexual relations with) persons of the same sex
sexual activity: activities associated with sexual intercourse

Other hypernyms of queerness include sex, sex activity, sexual practice.

queerness (noun)	sexual activity (noun)
a sexual attraction to (or sexual relations with) persons of the same sex	activities associated with sexual intercourse
a strange attitude or habit