Verb: [verb た-form] + って
い-adjective: [i-adj 〜い → 〜く] + たって
な-adjective: [na-adj] + だって
Noun: [noun] + だって
いくら/どんなに + [verb/adjective] + たって/だって ("no matter how …")
たって is a colloquial, casual equivalent of ~ても, meaning "even if", "even though", or "no matter how". It is primarily used in spoken Japanese and informal writing. It expresses the idea that something remains true or will happen regardless of the condition stated.
たって introduces a condition or situation that does not change the outcome stated in the main clause – the result holds true regardless.
たって and ても carry the same meaning, but たって is distinctly casual and conversational. You would not typically use たって in formal writing or polite speech. Use ても in those contexts instead.
いくら~たって ("no matter how much …"):
何を~たって ("no matter what …"):
どんなに~たって ("no matter how …"):
Because of its casual tone, たって can carry a slightly dismissive or emphatic feel – the speaker strongly asserts that the condition won't matter. This makes it common in arguments, complaints, and giving blunt opinions.