that is true and cannot be disagreed with or denied 无可辩驳的；不可否认的；无可置疑的 an incontestable right/fact 无可争辩的权利；无可置疑的事实 His claim to the land is incontestable. 他对这片土地的主张无可争议。
Word Originlate 17th cent.: from French, or from medieval Latin incontestabilis, from in- ‘not’ + contestabilis ‘able to be called upon in witness’, from the verb contestari (from con- ‘together’ + testare ‘to witness’).