空前絶後(くうぜんぜつご)

くうぜんぜつご
noun
unprecedented and unrepeatable; the first and last of its kind
descriptive
1. unprecedented and never to be repeated; utterly unparalleled
A four-character idiom (四字熟語(よじじゅくご)) describing something so extraordinary that nothing like it has happened before (空前(くうぜん), never seen before) and nothing like it will happen again (絶後(ぜつご), none after). Usually used with の before a noun.
空前絶後(くうぜんぜつご)の大(だい)ヒットだ。
It's an unprecedented mega-hit.
空前絶後(くうぜんぜつご)の規模(きぼ)のイベントが開(ひら)かれた。
An event of unprecedented scale was held.
その記録(きろく)は空前絶後(くうぜんぜつご)と言(い)われ、今(いま)でも破(やぶ)られていない。
That record is said to be unprecedented and unlikely ever to be matched, and it still has not been broken.

A 四字熟語(よじじゅくご) meaning that something is the first of its kind and will never be matched. Composed of 空前(くうぜん) (never seen before) and 絶後(ぜつご) (never to occur again). Most often used with の: 空前絶後(くうぜんぜつご)の.

Common collocations

Similar words

Related Words

Compare: 前代未聞(ぜんだいみもん) (unheard-of)
general
Added 2026.6.10 10:34 · Revised 2026.9.2 13:02
29000/29080_kuuzenzetsugo