理り解かい不ふ能のう

na-adjective

incomprehensible; impossible to understand

Used when something is beyond understanding or cannot be deciphered, often with a nuance of frustration or bewilderment.

• 彼かれの行こう動どうは理り解かい不ふ能のうだ。

  His behavior is incomprehensible.

• この暗あん号ごうは理り解かい不ふ能のうで、誰だれも解かい読どくできなかった。

  This code was impossible to decipher, and no one could crack it.