叶かなわぬ夢ゆめ

expression, noun

impossible dream; unattainable dream

A set phrase meaning a dream that cannot come true. The ぬ is a classical negative ending, giving a slightly literary or emphatic feel.

• 彼かれは叶かなわぬ夢ゆめを追おい続つづけた。

  He kept chasing an impossible dream.

• 叶かなわぬ夢ゆめだとわかっていても、諦あきらめられない。

  Even though I know it's an unattainable dream, I can't give up.