aviatress vs adult female

aviatress and adult female both are nouns.

Word	Noun	Adjective	Verb	Adverb
aviatress	Yes	No	No	No
adult female	Yes	No	No	No

As nouns, adult female is a hypernym of aviatress; that is, adult female is a word with a broader meaning than aviatress:

Other hypernyms of aviatress include aeronaut, aviator, flier, flyer, woman.

aviatress (noun)	adult female (noun)
a woman aviator	an adult female person (as opposed to a man)