even if; even though; no matter how
Expresses 'even if' or 'even though', often implying the result is the same regardless of the condition.
This たって is a colloquial and emphatic way to say 'even if' or 'even though'. It often carries a nuance that the condition doesn't matter or won't change the outcome. For example, if you say '急いだって間に合わない', you mean that even if you hurry, you won't make it—hurrying is pointless. It can also be used with い-adjectives, like '高くたって買う' (even if it's expensive, I'll buy it), or with nouns, like '子供だって分かる' (even a child understands).