Peerless; unmatched in the world. A four-character idiom expressing that someone or something is exceptionally superior and without equal.
彼の剣術は天下無双だと伝えられている。
His swordsmanship is said to be peerless.
その芸術家は独自の作風で天下無双を誇った。
That artist prided himself on an unrivaled, unique style.
最近のゲームでボスを倒して、天下無双の称号を得た。
I defeated the boss in the recent game and earned the title 'peerless in the land'.