至し難なんの業わざ

expression, noun

Herculean task; next-to-impossible undertaking

Describes a task or feat that is extremely difficult, almost impossible to achieve.

• この難なん問もんを解とくのは至し難なんの業わざだ。

  Solving this difficult problem is a Herculean task.

• 彼かれは至し難なんの業わざを成なし遂とげた。

  He accomplished a next-to-impossible undertaking.