nondescript vs doer

nondescript and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
nondescript	Yes	Yes	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of nondescript; that is, doer is a word with a broader meaning than nondescript:

Other hypernyms of nondescript include actor, worker.

nondescript (noun)	doer (noun)
a person who is not easily classified and not very interesting	a person who acts and gets things done

nondescript (adjective)	doer (adjective)
lacking distinct or individual characteristics; dull and uninteresting