insuperable
/ɪnˈsjuːpərəbl/adjective
- (of a difficulty or obstacle) impossible to overcome（困难, 障碍）无法克服的, 不可逾越的：
insuperable financial problems.
无法克服的财政问题。
派生词
insuperability
nouninsuperably
adverb词源
Middle English （in the general sense 'invincible'）： from Old French, or from Latin insuperabilis, from in- 'not' + superabilis （from superare 'overcome'）.