erudite
adj.having or showing a lot of knowledge, especially about books and history. You use this to describe someone who is very well-read and smart.
adj.possessing or displaying great knowledge, especially in books and literature. Often used to describe a person's intellectual depth or the quality of their writing.
“The professor gave an erudite lecture on ancient history.”
“Despite his erudite appearance, he was surprisingly easy to talk to and never used big words to impress others.”
“The novel is celebrated for its erudite prose, which seamlessly weaves classical references into the narrative without ever feeling forced or pedantic.”
“William Shaw had met and interviewed Shakur, and remembers an erudite, multi-talented 25-year-old with a rich cultural life.”
From Latin ērudītus, participle of ērudiō (“educate, train”), from e- (“out of”) + rudis (“rude, unskilled”). Doublet of erudit.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.