epigone vs imitator

epigone and imitator both are nouns.

Word	Noun	Adjective	Verb	Adverb
epigone	Yes	No	No	No
imitator	Yes	No	No	No

As nouns, imitator is a hypernym of epigone; that is, imitator is a word with a broader meaning than epigone:

epigone: an inferior imitator of some distinguished writer, artist, or musician
imitator: someone who copies the words or behavior of another

Other hypernyms of epigone include ape, aper, copycat, emulator.

epigone (noun)	imitator (noun)
an inferior imitator of some distinguished writer, artist, or musician	someone who copies the words or behavior of another
	someone who (fraudulently) assumes the appearance of another