急速

• 読み: きゅうそく
• ローマ字: kyuusoku
• 漢字の分解: 急 (kyuu) — sudden, fast; 速 (soku) — speed, quick
• 発音: /kjɯː.so.kɯ/

意味

Rapid; swift; fast-paced. Describes progress or change happening at high speed.

A na-adjective/noun emphasising the speed of change or development. Takes な before nouns (急速な発展, rapid development) and に as an adverb (急速に広がる, to spread rapidly). Commonly used in contexts of technological progress, economic growth, and social change. More neutral than 急激, which implies intensity as well.

例文

1. テクノロジーの急速な発展に驚かされる。
2. 高齢化が急速に進んでいる。
3. 急速に変わる社会についていくのは大変だ。

使い方ガイド

場面: technology, society, economics

トーン: analytical

起源と歴史

Sino-Japanese compound of 急 (kyuu, sudden/fast) and 速 (soku, speed). 急 conveys urgency, while 速 combines 辶 (movement) and 束 (bundle), suggesting swift, bundled motion — moving quickly and efficiently.

文化的背景

時代: Modern

世代: All ages

社会的背景: Universal