ˌpast ˈmaster BrE AmE noun [countable]
someone who is very skilled at doing something and has done it many times before SYN expert
past master at (doing) something
She’s a past master at exploiting other people.
ˌpast ˈmaster BrE AmE noun [countable]
someone who is very skilled at doing something and has done it many times before SYN expert
past master at (doing) something
She’s a past master at exploiting other people.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012