cultivated, educated, informed, accomplished, enlightened, polished, refined, well-bred, genteel, elegant, courteous, intellectual, sophisticated, sensitive, intelligent, au courant (French), able, well-read, well-educated, knowledgeable, up-to-date, well-informed, cosmopolitan, traveled, experienced, tolerant, understanding, appreciative, civilized, aesthetic, enjoying the arts, versed in the humanities, literary, urbane, suave, gracious, mannerly, erudite, learned, lettered, high-brow*, bluestocking*, high-class*; see also learned 1, 2, liberal 2, polite 1, refined 2.
Antonyms narrow, ignorant*, backward.