Delilah vs adult female

Delilah and adult female both are nouns.

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

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

Other hypernyms of Delilah include woman.

Delilah (noun)	adult female (noun)
(Old Testament) the Philistine mistress of Samson who betrayed him by cutting off his hair and so deprived him of his strength	an adult female person (as opposed to a man)
a woman who is considered to be dangerously seductive