mutant vs animate being

mutant and animate being both are nouns.

Word	Noun	Adjective	Verb	Adverb
mutant	Yes	Yes	No	No
animate being	Yes	No	No	No

As nouns, animate being is a hypernym of mutant; that is, animate being is a word with a broader meaning than mutant:

Other hypernyms of mutant include animal, beast, brute, creature, fauna.

mutant (noun)	animate being (noun)
an animal that has undergone mutation	a living organism characterized by voluntary movement
(biology) an organism that has characteristics resulting from chromosomal alteration

mutant (adjective)	animate being (adjective)
tending to undergo or resulting from mutation