unimpeachable

I adjective above reproach, approved, believable, beyond reproach, blameless, commendable, credible, creditable, excellent, faultless, guiltless, ideal, impeccable, incontestable, incontrovertible, inculpable, indefeasable, innocent, irrefragable, irrefutable, irreprehensible, irreproachable, laudable, iocuples, meritorious, noncontroversial, perfect, questionless, reputable, sanctus, sinless, spotless, stainless, unable to be discredited, unassailable, unblamable, unblameworthy, unblemished, uncensurable, unchallengeable, unconfutable, undeniable, undisputed, undoubted, unexceptionable, unmarred, unobjectionable, unquestionable, unrefutable, untainted, upright, worthy II index absolute (conclusive), accurate, actual, axiomatic, believable, blameless, certain (positive), clean, clear (certain), conclusive (determinative), definite, definitive, demonstrable, ethical, factual, genuine, inappealable, incontestable, incontrovertible, incorruptible, infallible, irrebuttable, irrefutable, irreprehensible, just, laudable, law-abiding, loyal, meritorious, not guilty, official, positive (incontestable), provable, real, reputable, secure (sound), solid (sound), sound, true (authentic), unalienable, undeniable, unobjectionable, unrefutable, upright