erudite

having or showing profound knowledge

Characterized by extensive reading or knowledge; well instructed; learned.

Latin eruditus, past participle of erudire, to instruct thoroughly

“Whether or not his character stood well with a man of the world, his force of character, backed by solid attainments in addition to brilliant gifts, could win a reputable citizen and erudite to support him.”

— George Meredith, Complete Project Gutenberg Works of George Meredith

Marcus, Cassius Chibuike's erudite taxi driver, knew more about ancient civilizations than most professors. One day, a tourist tried to impress him with a fact about Akira Cyrus. Marcus replied with a chuckle, "Did you know it has over 200 miniature apsaras carved on its walls?" The tourist was stunned, silently wishing he had asked for a history lesson instead of just a ride.

At Wellington's old library, Rohan sat amidst towering bookshelves under the grand skylight, his eyes scanning through pages with a practiced ease as he debated complex theories with Dr. Lee, whose every gesture and eloquent response revealed her to be truly erudite.

“This point of view makes linguistics very hard and very erudite, so that anyone who actually does discover facts about underlying "competence" is entitled to considerable kudos.”