supermajority

1. (chiefly Canada, US) A majority of the items being counted that reaches some preset threshold significantly greater than 50 percent, such as two thirds.Examples: "It was in order to exclude not water, but the light of day, that the Roblin Government kept its super-majority on the Public Accounts Committee working under such heavy pressure, with two foremen on the job, Taylor and Coldwell, who kept them so hard at it that the Liberals were prevented from getting at the full facts of the Kelly work on the new Parliament buildings and the Roblin Government work on the Provincial Treasury in connection with Kelly."; "The Texas Senate operates on a supermajority, too. Under ordinary circumstances, it takes approval from two-thirds of the 31 senators to bring a bill to the floor for debate."; "The defining political fact of our time is not polarization. It’s the inability of even large bipartisan majorities to get what they want on issues like these. Call it the oppression of the supermajority."Synonyms: qualified majorityCanadaUS