undoer vs worker

undoer and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
undoer	Yes	No	No	No
worker	Yes	No	No	No

As nouns, worker is a hypernym of undoer; that is, worker is a word with a broader meaning than undoer:

Other hypernyms of undoer include actor, doer.

undoer (noun)	worker (noun)
a person who destroys or ruins or lays waste to	sterile member of a colony of social insects that forages for food and cares for the larvae
a person who unfastens or unwraps or opens	a person who works at a specific occupation
a seducer who ruins a woman	a member of the working class (not necessarily employed)
	a person who acts and gets things done