insuperable

 
Pronunciation: /ɪnˈsuːp(ə)rəb(ə)l, ɪnˈsjuː/

adjective

  • (of a difficulty or obstacle) impossible to overcome: insuperable financial problems

Derivatives

insuperability

Pronunciation: /-ˈbɪlɪti/
noun

insuperably

adverb

Origin:

Middle English (in the general sense 'invincible'): from Old French, or from Latin insuperabilis, from in- 'not' + superabilis (from superare 'overcome')