incontrovertibly
adverb /ˌɪnkɒntrəˈvɜːtəbli/
  /ˌɪnkɑːntrəˈvɜːrtəbli/
 (formal)- in a way that cannot be disagreed with or denied无可争辩的;不能否认的;无可置疑的 - Her book shows incontrovertibly that he was innocent.她的书无可争议地表明他是无辜的。 
 
- Her book shows incontrovertibly that he was innocent.