()()()

つけやきば
noun
superficial knowledge; hastily acquired skill; slapdash preparation
expressionidiom
1. superficial knowledge; hastily acquired skill; slapdash preparation
Knowledge or skills that were quickly crammed or picked up at the last minute, without genuine understanding or mastery. Implies that such preparation will not hold up under pressure.
()()()知識(ちしき)すぐばれる
Superficial knowledge will be found out quickly.
I went into the exam with hastily crammed knowledge, and sure enough, I failed.
Slapdash measures cannot solve fundamental problems.

Literally means "attached tempered blade" — a cheap blade with a thin layer of hard steel welded onto it. Such blades look sharp but quickly become dull, just as hastily acquired knowledge or skills crumble under real-world use.

Common collocations

Similar words

  • 一夜漬(いちやづ): overnight cramming — specifically cramming the night before an exam
  • にわか仕込(じこ)み: hastily learned — similar idea of quickly picked-up skills
  • その()しのぎ: stopgap — a temporary fix that doesn't address the root cause

Etymology

From swordsmithing: a ()()() is a blade where hard steel is merely attached to the surface rather than forged properly. It cuts at first but dulls quickly — a perfect metaphor for shallow preparation.