major-league

from The Collaborative International Dictionary of English v.0.48

major-league \major-league\, major league \major league\a.
   1. Of or pertaining to a {major league}; as, major-league
      football rules.
      [PJC]

   2. Among the best or most important of its class; as, a
      major-league computer manufacturer.
      [PJC] major-league club