forelady vs adult female

forelady and adult female both are nouns.

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

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

Other hypernyms of forelady include foreperson, woman.

forelady (noun)	adult female (noun)
a woman who is foreperson of a jury	an adult female person (as opposed to a man)