supermajority

/ˌsupərˈmædʒɔrəti/
noun
  1. A majority that is larger than a simple majority, often required for special decisions such as changing a constitution or overriding a veto.
    • The amendment needed a two-thirds supermajority in both houses to pass.
    • Without a supermajority, the bill could not overcome the president's veto.
    • The board required a supermajority of 75% to approve the merger.
Antonyms
What does "supermajority" mean? | whatsthatwordmean | whatsthatwordmean