uncrowned
adjective /ˌʌnˈkraʊnd/
  /ˌʌnˈkraʊnd/
Idioms - (of a king or queen) not yet crowned (= had a crown officially placed on their head as a sign of royal power)Oxford Collocations DictionaryUncrowned is used with these nouns:
- king
 
 
Idioms 
the uncrowned king/queen (of something) 
- the person considered to be the best, most famous or successful in a particular place or area of activityTopics Successc2