James Champlin Fernald,
English Synonyms and Antonyms
“ BRUTISH. Synonyms: A brutish man simply follows his animal instincts, without special inclination to do harm; the brutal have always a spirit of malice and cruelty. Brute has no special character, except as indicating what a brute might possess; much the same is true of animal, except that animal leans more to the side of sensuality, brute to that of force, as appears in the familiar phrase "brute force." Hunger is an animal appetite; a brute impulse suddenly prompts one to strike a blow in anger. Bestial, in modern usage, implies an intensified and degrading animalism. ”
