1. A formal, scholarly speech characterized by extensive knowledge, academic references, and sophisticated language
The professor delivered a learned speech on medieval history at the conference.
O professor proferiu um discurso erudito sobre história medieval na conferência.
2. A speech that demonstrates deep understanding and intellectual expertise on a particular subject
Her learned speech on quantum physics impressed the entire audience.
Seu discurso erudito sobre física quântica impressionou toda a audiência.