adventuress vs adult female

adventuress and adult female both are nouns.

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

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

Other hypernyms of adventuress include adventurer, venturer, woman.

adventuress (noun)	adult female (noun)
a woman adventurer	an adult female person (as opposed to a man)