| polyhistoric |
| polymathic |
| posted(adjective, smart, familiar, intelligent, brilliant) |
| prescient(adjective, smart, familiar, intelligent, brilliant) |
| primed(adjective, knowledgeable, aware, informed, up-to-date) |
| privy(adjective, smart, familiar, intelligent, brilliant) |
| pundit |
| quick |
| reliable(adjective, knowledgeable, aware, informed, up-to-date) |
| sciential(adjective, knowledge, experience, skill, expert) |
| scientific(familiar, knowledgeable, informed, experienced, cultured) |
| sound(sensible, intelligent, knowledgeable, cultured, educated) |
| tasteful(familiar, knowledgeable, informed, experienced, cultured) |
| taught(sensible, familiar, intelligent, intellectual, cultured) |
| tuned in(expression, adjective, knowledgeable, aware, informed) |
| up-to-date(adjective, polite, sophisticated, refined, knowledgeable) |
| urbane(experienced, cultured, civilized, well-bred) |
| versant(knowledgeable, aware, informed, learned, well-informed) |
| well up(adjective, knowledge, experience, skill, expert) |
| wise to(expression, knowledgeable, informed, cultured, learned) |