smasher vs adult female

smasher and adult female both are nouns.

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

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

Other hypernyms of smasher include woman.

smasher (noun)	adult female (noun)
a conspicuous success	an adult female person (as opposed to a man)
a very attractive or seductive looking woman
a person who smashes something