The term "more lowbrow" refers to something that is deemed vulgar, crass or unsophisticated. To find antonyms for this word, one should look for adjectives that convey the opposite meaning. Some suitable antonyms for "more lowbrow" are refined, cultured, sophisticated, intellectual and elegant. These words suggest a higher level of taste, education, and intellect, which is the opposite of being lowbrow. A cultured person, for instance, is knowledgeable about the arts, literature, and other intellectual pursuits. A refined person has good manners and taste in things. Therefore, using an antonym for "more lowbrow" can elevate the level of discourse and express a higher level of intellectual maturity.