supergrandmaster means A particular grandmaster whose proficiency in chess or in general is notably greater than that of average grandmasters. Lexicurio rates it Sui generis — a strength score of 85 out of 100.
supergrandmaster is pronounced /suːpəɹɡɹændˈmɑːs.tə/.
noun
- A particular grandmaster whose proficiency in chess or in general is notably greater than that of average grandmasters.“I'm running two fine victories by Gligoric over two of the better U.S. international masters — Bernard Zuckerman and Norman Weinstein. In both it’s easy to see why a supergrandmaster can beat international masters on most occasions.”