nevertheless; at any rate; even so; all things considered; be that as it may
忙しいのは分かるが、それにしても遅すぎる。
I understand you're busy, but even so, it's too late.
それにしても今日は暑い日だ。
Even so, today is a hot day.
準備不足だったとはいえ、それにしても結果が悪い。
Even considering the lack of preparation, the results are still bad.