Learned, a.
Of or pertaining to learning; possessing, or characterized by, learning, esp. scholastic learning; erudite; well-informed; as, a learned scholar, writer, or lawyer; a learned book; a learned theory. The learnedlover lost no time. Spenser. Men of much reading are greatly learned, but may be little knowing. Locke. Words of learned length and thundering sound. Goldsmith. The learned, learned men; men of erudition; scholars. -- Learn"ed*ly, adv. Learn"ed*ness, n. Every coxcomb swears as learnedly as they. Swift.
Shades of meaning
Fernald lists learned only as an antonym, under ignorant.
He lists it without comment; the entries above explain its neighbors.
Synonyms
none given