expression
after all; no matter what; in the end
Colloquial emphatic phrase, roughly equivalent to なんといっても or なにしろ. Used to stress that something is true regardless of circumstances or objections. Often appears in casual speech.
なんてったって、彼はこの分野の専門家だからね。
After all, he's an expert in this field, you know.
なんてったって、ここが一番落ち着くんだ。
No matter what anyone says, this is the place where I feel most at ease.