難なん中ちゅうの難なん

expression

the hardest thing of all; the most difficult thing

Emphatic set phrase meaning 'the most difficult among difficult things'. Used to stress extreme difficulty.

• この問もん題だいは難なん中ちゅうの難なんだ。

  This problem is the hardest of all.

• 彼かれにとって、早はや起おきは難なん中ちゅうの難なんらしい。

  For him, waking up early seems to be the most difficult thing.