callow Antonyms

olden superannuated tested unbelieving urban urbane venerable worldly businessperson fully grown suave sophisticated senior patriarchal precocious remunerated ripe ripened ritual ritualistic senescent senile older creaky over the hill multiskilled past it streetwise time-honoured worldly wise well-versed extremely old advanced in years grey-haired gray-haired fully fledged drop-kick white-haired long-standing moth-eaten geriatric doddering doddery long in the tooth full-fledged grey-bearded old adult dateless decrepit