The Oxford Thesaurus An A-Z Dictionary of Synonyms - brute adj.

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. --n. 2) animal, beast, savage: He wrote that man was the middle link between angels and brutes. George behaved like an absolute brute to her.