今いままでで

expression

to date; so far; as of now

Used in superlative expressions with words like 一番, 最も, or 最悪 to mean 'the most ... so far' or 'the ...est yet'. It sets a time frame up to the present.

• 今いままでで一いち番ばんおいしいラーメンだった。

  That was the most delicious ramen I've had so far.

• 今いままでで最もっとも難むずかしい試し験けんだっ