What does たって mean?
たって is a Japanese particle meaning “even if” or “even though” in English. It can also be translated as “however” depending on context. It is written as たって in hiragana, and tatte in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
いまそれを直そうったって無駄だ。
It's no use trying to fix it now.