UNDISPUTED

adj. unquestioned, unquestionable, beyond question, accepted, acknowledged, admitted, indisputable, indubitable, undoubted, certain, sure, unmistakable or unmistakeable, definite, explicit, clear, (self-)evident, obvious, uncontested, unchallenged, incontestable, irrefutable, incontrovertible, undeniable, conclusive He proved once again that he is the undisputed heavyweight champion of the world