incontrovertible

incontrovertible
    adj 1: impossible to deny or disprove; "incontrovertible proof
           of the defendant's innocence"; "proof positive"; "an
           irrefutable argument" [syn: {incontrovertible},
           {irrefutable}, {positive}]
    2: necessarily or demonstrably true; "demonstrable truths" [syn:
       {demonstrable}, {incontrovertible}]
    

Incontrovertible \In*con`tro*ver"ti*ble\, a.
   Not controvertible; too clear or certain to admit of dispute;
   indisputable. --Sir T. Browne. --
   {In*con`tro*ver"ti*ble*ness}, n. -- {In*con`tro*ver"ti*bly},
   adv.
   [1913 Webster]
    

72 Moby Thesaurus words for "incontrovertible":
      absolute, actual, adducible, admissible, admitting no question,
      attestative, attestive, authentic, based on, certain,
      circumstantial, conclusive, confirmable, convincing, cumulative,
      damning, decisive, definite, definitive, demonstrable,
      demonstratable, determinative, documentary, documented,
      established, evidential, evidentiary, ex parte, eye-witness,
      factual, final, firsthand, founded on, grounded on, hearsay,
      historical, implicit, inappealable, incontestable, indicative,
      indisputable, indubitable, irrefragable, irrefutable, irresistible,
      material, nuncupative, overwhelming, positive, presumptive,
      probative, provable, real, reliable, self-evident, significant,
      suggestive, sure, symptomatic, telling, testable, unanswerable,
      unconfutable, uncontestable, undeniable, unequivocal,
      unimpeachable, unquestionable, unrefutable, valid, verifiable,
      weighty