徹てっ見けん

noun, noun or participle which takes 'suru'

seeing clearly; thorough insight; penetrating vision

Literary or formal term for seeing through something completely, without obstruction, or examining every detail. Often used in philosophical or descriptive contexts.

• 彼かれの徹てっ見けんには誰だれもかなわない。

  No one can match his penetrating insight.

• この問もん題だいを徹てっ見けんするには時じ間かんがかかる。

  It takes time to see through this problem completely.