unemotional person vs worker

unemotional person and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
unemotional person	Yes	No	No	No
worker	Yes	No	No	No

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

Other hypernyms of unemotional person include actor, doer.

unemotional person (noun)	worker (noun)
someone who is seemingly indifferent to emotions	sterile member of a colony of social insects that forages for food and cares for the larvae
	a person who works at a specific occupation
	a member of the working class (not necessarily employed)
	a person who acts and gets things done