brute vs gregarious

brute is a noun but gregarious is not a noun.

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

brute (noun)	gregarious (noun)
a living organism characterized by voluntary movement
a cruelly rapacious person

brute (adjective)	gregarious (adjective)
resembling a beast; showing lack of human sensibility	(of animals) tending to form a group with others of the same species
	(of plants) growing in groups that are close together
	instinctively or temperamentally seeking and enjoying the company of others