in·con·test·able /ˌɪnkənˈtɛstəbəl/
  (a.)無可爭辯的,明白的
  In·con·test·a·ble a.  Not contestable; not to be disputed; that cannot be called in question or controverted; incontrovertible; indisputable; as, incontestable evidence, truth, or facts.
  Syn: -- Incontrovertible; indisputable; irrefragable; undeniable; unquestionable; intuitable; certain.
  -- In*con*test*a*ble*ness, n. -- In*con*test*a*bly, adv.
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  incontestable
       adj 1: incapable of being contested or disputed [syn: incontestible]
              [ant: contestable]
       2: not open to question; obviously true; "undeniable guilt";
          "indisputable evidence of a witness" [syn: indisputable,
           undisputable]