理り解かいの範はん疇ちゅうを超こえる

expression, ichidan verb

go over one's head; be beyond comprehension

Used when something is too difficult or complex to understand. Often implies the subject matter exceeds the listener's knowledge or intellectual capacity.

• 彼かれの説せつ明めいは難むずかしすぎて、私わたしの理り解かいの範はん疇ちゅうを超こえていた。

  His explanation was too difficult and went over my head.

• この理り論ろんは初しょ心しん者しゃの理り解かいの範はん疇ちゅうを超こえるかもしれない。

  This theory may be beyond a beginner's comprehension.