indisputable

indisputable
    adj 1: not open to question; obviously true; "undeniable guilt";
           "indisputable evidence of a witness" [syn:
           {incontestable}, {indisputable}, {undisputable}]
    2: impossible to doubt or dispute; "indisputable (or sure)
       proof" [syn: {indisputable}, {sure}]
    

Indisputable \In*dis"pu*ta*ble\ (?; 277), a. [Pref. in- not +
   disputable: cf. F. indisputable.]
   Not disputable; incontrovertible; too evident to admit of
   dispute.

   Syn: Incontestable; unquestionable; incontrovertible;
        undeniable; irrefragable; certain; positive; undoubted;
        sure; infallible. -- {In*dis"pu*ta*ble*ness}, n. --
        {In*dis"pu*ta*bly}, adv.
        [1913 Webster]
    

139 Moby Thesaurus words for "indisputable":
      absolute, actual, adducible, admissible, admitting no exception,
      admitting no question, all-out, apparent, attestative, attestive,
      authentic, based on, beyond doubt, categorical, certain,
      circumstantial, clear, clear as crystal, complete, conclusive,
      confirmable, convincing, crystal-clear, cumulative, damning,
      decided, decisive, definite, definitive, demonstrable,
      demonstratable, determinate, determinative, discernible, distinct,
      documentary, documented, downright, entire, evident, evidential,
      evidentiary, ex parte, explicit, express, eye-witness, factual,
      final, firsthand, fixed, flat, flat-out, founded on, global,
      grounded on, hearsay, historical, implicit, inappealable,
      incontestable, incontrovertible, indicative, indubitable,
      irrefragable, irrefutable, irresistible, manifest, material,
      noticeable, nuncupative, observable, obvious, open-and-shut,
      out-and-out, outright, overwhelming, palpable, patent, perceivable,
      perceptible, peremptory, perfect, perspicuous, plain, plain as day,
      positive, presumptive, probative, provable, real, reliable, round,
      seeable, self-evident, self-explaining, self-explanatory,
      significant, straight, straight-out, suggestive, sure, symptomatic,
      tangible, telling, testable, to be seen, total, true, unanswerable,
      uncircumscribed, unconditional, unconditioned, unconfutable,
      uncontestable, undeniable, undoubting, unequivocal, unhampered,
      unhesitating, unimpeachable, unlimited, unmistakable, unmitigated,
      unqualified, unquestionable, unquestioning, unrefutable,
      unreserved, unrestricted, unwaivable, utter, valid, veridical,
      verifiable, visible, weighty, whole, without exception,
      without reserve