Sophisticated
Part of speech: adjective
Definition: Having obtained worldly experience, and lacking naiveté; cosmopolitan. elegant, refined. Complicated, especially of complex technology. Appealing to the tastes of an intellectual; cerebral. Dishonest or misleading (rare; primarily British English).
Example sentence: Thanks to postmodernism, we tend to see all facts as meaningless trivia, no one more vital than any other. Yet this disregard for facts qua facts is intellectually crippling. Facts are the raw material of thought, and the knowledge of significant facts makes sophisticated thought possible.
Well-informed
Part of speech: adjective
Definition: Furnished with sufficient, correct knowledge