としたって LinksSentence search for としたってEdit in JMdict Expressions (phrases, clauses, etc.)1. even if ...; even supposing that ...Colloquial, See also としてもかれ彼がほんとう本当のりゆう理由をみ見つけようとしたってむだ無駄だ。It's no good his trying to find the true reason. Discussions Log in to talk about this word.