incontrovertible

I adjective absolute, apodictic, ascertained, assured, authoritative, beyond a shadow of a doubt, beyond contradiction, capable of proof, certain, clear-cut, conclusive, definite, demonstrable, established, factual, inappealable, incontestable, indisputable, indubious, indubitable, irrefragable, irrefutable, noncontroversial, past dispute, positive, questionless, quod refutari non potest, settled, sure, testable, true, unambiguous, unanswerable, unchallengeable, unconfutable, uncontradictable, undeniable, unequivocal, unimpeachable, unmistakable, unquestionable, unshakable, veracious associated concepts: incontrovertible fact, incontrovertible proof II index axiomatic, believable, categorical, certain (fixed), certain (positive), clear (certain), cogent, conclusive (determinative), definitive, factual, immutable, inappealable, incontestable, indefeasible, infallible, irrefutable, peremptory (absolute), positive (incontestable), reliable, resounding, solid (sound), sound, uncontested, undeniable, undisputed, unequivocal, unimpeachable, unrefutable