insuperable

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++in·su·pe·ra·ble /ɪnˈsjuːpərəbəl◂ $ ɪnˈsuː-/ adjective formal  IMPOSSIBLEan insuperable difficulty or problem is impossible to deal with 〔困难或问题〕不能克服的，无法解决的 There were insuperable obstacles, and the plan was abandoned. 由于存在无法克服的障碍，计划被放弃了。 As usual, the hero was facing insuperable odds. 照例，男主角遇到了无法克服的困难。

Examples from the Corpus

insuperable• The legal barriers are presently insuperable.Origin insuperable (1300-1400) French Latin, from superare “to get over”, from super “above”

in·su·pe·ra·ble adjectiveChineseSyllable  

impossible or problem Corpus difficulty to insuperable is an deal

insuperable
in‧su‧pe‧ra‧ble /ɪnˈsjuːpərəbəl◂ $ ɪnˈsuː-/ adjective formalan insuperable difficulty or problem is impossible to deal with:
    There were insuperable obstacles, and the plan was abandoned.
    As usual, the hero was facing insuperable odds.

in·su·per·ableBrE /ɪnˈsuːpərəbl/ 🔊, also /ɪnˈsjuːpərəbl/ 🔊NAmE /ɪnˈsuːpərəbl/ 🔊 adjective (formal) (of difficulties, problems, etc. 困难、问题等) that cannot be dealt with successfully 无法克服的；难以解决的；不可逾越的 SYN insurmountable