noun which may take the genitive case particle 'no', noun
unmatched in history; unequaled in history
A yojijukugo meaning peerless or unparalleled throughout all of history. Used in formal or literary contexts to describe someone or something that stands alone in its greatness.
彼の業績は古今独歩と称えられている。
His achievements are praised as unmatched in history.
古今独歩の名画として、この作品は世界中で知られている。
This work is known worldwide as a masterpiece unequaled in history.
A yojijukugo composed of 古今 (ancient and modern, i.e., all of history) and 独歩 (walking alone, i.e., standing alone). The exact origin is uncertain, but it follows a common pattern of four-character idioms expressing supreme excellence.