unchallenged

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adjective un·chal·lenged \ ˌən-ˈcha-lənjd \

Definition of unchallenged

:not questioned, disputed, or opposed :not challenged
  • an unchallenged assumption
  • unchallenged authority
  • … modes of thinking that have gone unchallenged since the time of Newton, Descartes, and even Aristotle.
  • —James Bailey

First Known Use of unchallenged

circa 1639


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