unchallenged

adjective

un·​chal·​lenged ˌən-ˈcha-lənjd 

: 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

Examples of unchallenged in a Sentence

Recent Examples on the Web

The Republicans’ most aggressive allegations went unchallenged in the room. — Daniel Engber, The Atlantic, 29 July 2026

Burnham, 56, was appointed unchallenged after incumbent Keir Starmer agreed to step down last month following a series of election defeats, U-turns and scandals. — Kayla Hayempour, NBC news, 20 July 2026

The former mayor’s bid for Labour leadership remained unchallenged, as expected, but his challenges are far from over. — Callum Sutherland, Time, 17 July 2026

Caballero performed well enough that the Yankees optioned Volpe, their nearly-unchallenged starting shortstop of the past three seasons, to Triple-A when his rehab assignment ended. — Gary Phillips, New York Daily News, 8 July 2026

Word History

First Known Use

circa 1639, in the meaning defined above