the uncrowned king/queen of somethingTHINK/HAVE THE OPINION THATBESTthe person who is thought to be the best or most famous in a particular activity 某活动的无冕之王/女王,…最出色者 the uncrowned king of jazz 爵士乐的无冕之王
→ the uncrowned king/queen of something at uncrowned(1)