knowledgeable◼◼◼(having knowledge, especially of a particular subject) adjective [UK: ˈnɒ.lɪ.dʒəb.l̩] [US: ˈnɑː.lə.dʒəb.l̩]He's very knowledgeable. = Il est fort instruit.
learned◼◼◼adjective [UK: lɜːnd] [US: ˈlɝːnd]He was very learned, but he didn't know it. = Il était très instruit, mais il ne le savait pas.
learned◼◼◼(having much learning) adjective [UK: lɜːnd] [US: ˈlɝːnd]He was very learned, but he didn't know it. = Il était très instruit, mais il ne le savait pas.
privy◼◼◻(with knowledge of; party to; let in on) adjective [UK: ˈprɪ.vi] [US: ˈprɪ.vi]