Four-Character Idiom · Combat & Force · Kyojuro Rengoku
斬釘截鉄
Meaning
A decision delivered with the finality of cutting nails or steel — no hesitation, no negotiation.
釘や鉄を断ち切るように、決断が素早く、態度が極めてきっぱりしていること。
The Kyojuro Rengoku moment
In the Hashira meeting, Rengoku interrupts the deliberation about Tanjiro's tribunal with a single declarative line — the discussion is closed.
Why it fits Kyojuro Rengoku
When the room is wavering, Rengoku settles it in one sentence and moves on. Zantei-settetsu is the classical idiom for exactly that — a decision that does not waste time on the dramaturgy of deciding.
Sources
- デジタル大辞泉 — 斬釘截鉄 (dictionary)
- 精選版 日本国語大辞典 — 斬釘截鉄 (dictionary)