1 brutish, dull, unfeeling, senseless, blind, unintelligent, unthinking, thoughtless, mindless, unreasoning, irrational, instinctive, physical, material; insensate, unconscious:
He was able to lift the safe without help, by sheer brute strength.
2 animal, beast, savage:
He wrote that man was the middle link between angels and brutes. George behaved like an absolute brute to her.