undisputed

/ˌʌndɪˈspjutɪd/
adjective
  1. Not questioned or challenged; accepted as true or correct by everyone.
    • The fact that water boils at 100°C is undisputed in science.
    • He is the undisputed leader of the team, respected by all.
    • Her undisputed talent made her the star of the show.
  2. Clearly the best or most important in a particular area; without any rival.
    • This restaurant is the undisputed favorite for pizza in our town.
    • After winning three championships in a row, they became the undisputed champions.
    • She is the undisputed queen of pop music, with millions of fans worldwide.