lowbrow UK /ˈləʊbɹaʊ/US /ˈloʊbɹaʊ/noun 2adjective 1forms 3 noun2 •Someone or something of low education or culture. •An underground populist visual art movement that arose in the Los Angeles area in the late 1960s, inspired by comics, punk music, graffiti, etc. adjective1 •Unsophisticated, not intended for an audience of intelligence, education or culture.The Three Stooges are known for their lowbrow slapstick humor consisting of foolish action for the masses. formslowbrows · more lowbrow · most lowbrow