Sinonim past master

English Thesaurus

1. someone who has long and thorough experience in a given activity (noun.person)

hypernym	:	expert,
definition	:	a person with special knowledge or ability who performs skillfully (noun.person)

2. someone who was formerly a master (noun.person)

hypernym	:	master, professional,
definition	:	an authority qualified to teach apprentices (noun.person)