hexapod vs brute

hexapod and brute both are nouns.

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

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

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

hexapod (noun)	brute (noun)
an animal having six feet	a living organism characterized by voluntary movement
	a cruelly rapacious person

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