Englishundisputed
adjective
his military pre-eminence was undisputed:
undoubted, uncontested, unchallenged, unquestioned, not in question, unquestionable, indubitable, not in doubt, incontrovertible, incontestable, unequivocal, undeniable, irrefutable, unmistakable, sure, certain, clear, clear-cut, manifest, decided, definite, confirmed, absolute, accepted, acknowledged, recognized, positive.
▷antonyms disputed, doubtful.
undisputed Oxford Dictionary of English