my learned friend Definition

learned
adj

1. Having great knowledge or learning, especially through years of study.

Thesaurus: wise, scholarly, adept, erudite, knowledgeable, informed, sage, lettered, well-read, academic; Antonym: untutored.
2. Referring or relating to learned people; scholarly.
3. Those who have great knowledge.

Form: the learned

Derivative: learnedly
adverb

Idiom: my learned friend

A title of courtesy used by lawyers or barristers to address each other in court.