predator vs brute

predator and brute both are nouns.

Word	Noun	Adjective	Verb	Adverb
predator	Yes	No	No	No
brute	Yes	Yes	No	No

As nouns, brute is a hypernym of predator; that is, brute is a word with a broader meaning than predator:

Other hypernyms of predator include animal, animate being, beast, creature, fauna.

predator (noun)	brute (noun)
any animal that lives by preying on other animals	a living organism characterized by voluntary movement
someone who attacks in search of booty	a cruelly rapacious person

predator (adjective)	brute (adjective)
	resembling a beast; showing lack of human sensibility