そればかりか

expression

not only that, but also; on top of that; furthermore

Adds an additional, often stronger or more surprising point to a preceding statement. Common in both spoken and written Japanese.

• 彼かれは遅ち刻こくした。そればかりか、宿しゅく題だいも忘わすれてきた。

  He was late. Not only that, but he also forgot his homework.

• この店みせは値ね段だんが高たかい。そればかりか、サービスも悪わるい。

  This shop is expensive. On top of that, the service is bad.