この上うえもなく

expression

most of all; extremely; supremely

Adverbial phrase emphasizing the highest degree; often used before adjectives or verbs to mean 'more than anything' or 'to the utmost'. Slightly formal or emphatic.

• この上うえもなく幸しあわせです。

  I am supremely happy.

• この上うえもなく重じゅう要ような問もん題だいだ。

  It is an extremely important issue.