-더라도 — even if

This expression is used to indicate that while the speaker acknowledges and accepts the possibility of the content in the preceding clause, it does not have any effect on the content in the following clause.

The preceding clause consists of a simple hypothetical statement or a statement acknowledging some present situation.

This expression is commonly used together with 아무리.

Details

This expression can be replaced with -아도/어도, but the two expressions have the following differences.

Kimchi Reader

Indicates that the second clause will happens regardless of the described state or action of the first clause. Stronger in meaning than 아/어도. Often used to speculate or theorize.

식당에 일찍 가서 줄 서 <span class='focus'>있더라도</span> 웨이팅이 오래 걸릴 수도 있어요.

Even if we go to the restaurant early and stand in line, it might take a while to get in.

헤어진 상대를 훨씬 더 멋있는 모습으로 마주치게 되면 상대방을 후회하게 만들 수 있고, 후회까지는 <span class='focus'>아니더라도</span> 조금의 씁쓸함을 안겨줄 수 있습니다.

If you run into an ex and you're looking much better than before, you can make them regret the breakup, or even if it doesn't go as far as regret, you can make them feel a little bitter.