retarded Antonyms

precocious arrogant person armchair critic smarty pants mensa cagey generalist djinni au courant sophisticated schoolman refined rabbinic pretty polyhistor artful dodger smart aleck annoyingly clever person annoying know-it-all highly evolved all hat no cattle ahead of the times bookish person as sly as a fox as cunning as a fox as cunning as a cartload of monkeys as clever as a wagonload of monkeys as clever as a cartload of monkeys agile enough highly developed walking dictionary nimble mathematician aided ahead agile advocated advance advanced adroit adept acute acquainted accommodated accelerated academic able alert apt librarian