減少率(げんしょうりつ)

げんしょうりつ
noun
rate of decrease; rate of decline
formalacademicquantity
1. rate of decrease; rate of decline
The percentage or ratio by which something decreases over a given period.
出生率(しゅっしょうりつ)の減少率(げんしょうりつ)が問題(もんだい)になっている。
The rate of decline in the birth rate has become a problem.
売上(うりあげ)の減少率(げんしょうりつ)は前月比(ぜんげつひ)十(じゅう)パーセントだった。
The rate of sales decline was ten percent compared to the previous month.
地方(ちほう)の人口(じんこう)減少率(げんしょうりつ)は都市部(としぶ)よりもはるかに高(たか)い。
The population decline rate in rural areas is far higher than in urban areas.

A compound of 減少(げんしょう) (decrease) + 率(りつ) (rate). The counterpart of 増加率(ぞうかりつ). Frequently used in discussions of demographics, economics, and public health in Japan, where population decline is a major social issue.

Common collocations

Similar words

  • 増加率(ぞうかりつ): rate of increase — the opposite
  • 低下率(ていかりつ): rate of decline — focuses more on levels falling (quality, ability, rates) rather than quantities shrinking
  • 下落率(げらくりつ): rate of decline; drop rate — mainly used for prices and market values

Related Words

Antonym: 増加率(ぞうかりつ) (rate of increase)
Compare: 下落率(げらくりつ) (rate of decline)
general
Added 2026.5.6 23:25 · Revised 2026.9.2 13:02
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