expression
even if; even supposing that
Colloquial conditional expression meaning 'even if it were the case that...'. Used to concede a hypothetical situation while asserting that the conclusion remains unchanged. Similar to としても, but more casual and conversational.
See also: としても
今から急いだとしたって、もう間に合わないよ。
Even if we hurried now, we wouldn't make it in time.
彼が謝ったとしたって、私は許さない。
Even supposing he apologized, I wouldn't forgive him.