頭打(あたまう)ち

あたまうち
noun
hitting a ceiling, plateauing, peaking
businesschangeeconomics
1. hitting a ceiling, plateauing, peaking
A state where growth, increase, or improvement has reached its limit and cannot go higher. Used for numbers, performance, prices, and similar metrics.
売上(うりあげ)が頭打(あたまう)ちだ。
Sales have plateaued.
人口(じんこう)の増加(ぞうか)が頭打(あたまう)ちになっている。
Population growth has hit a ceiling.
Growth in this industry has plateaued, and new strategies are needed.

Common patterns

頭打(あたまう)ちになる (to plateau, to hit a ceiling) is the most common usage pattern. Also used as a predicate: ~が頭打(あたまう)ちだ.

Etymology

頭(あたま) (head) + 打(う)ち (hitting). The image of hitting one's head on a ceiling above, unable to go higher.

Usage

Primarily used in business, economics, and data contexts. Common subjects include 売上(うりあげ) (sales), 成長(せいちょう) (growth), 株価(かぶか) (stock prices), and 人口(じんこう) (population).