synonym Comparative
一変
VS
急激
Differences Between "一変" and "急激"
Option A
一変
Meaning
complete change, sudden change, drastic change
Reading
いっぺん (ippen)
Syllabus Level
N2
Practical Example
彼の一言で、会議の雰囲気は一変した。
With just one word from him, the atmosphere of the meeting completely changed.
Option B
急激
Meaning
sudden, drastic, rapid
Reading
きゅうげき (kyūgeki)
Syllabus Level
N2
Practical Example
気温が急激に下がったので、体調を崩しやすい。
The temperature dropped suddenly, so it's easy to get sick.
Which one to use?
Select the correct Japanese word for this context
Which word fits this context: "(complete change, sudden change, drastic change)"?
🎉 正解 / Correct!
使い分け解説:
- 一変: Used when a situation, appearance, or mood changes completely and often suddenly. It can be used for both positive and negative changes. （状況、様子、雰囲気などが完全に、そしてしばしば急に変わることを表します。プラスにもマイナスにも使われます。）
- 急激: Describes a sudden and intense change or action. Often used with verbs like 変化する (to change) or 増加する (to increase). Can be an adverb (急激に) or a な-adjective.
- 一変: Used when a situation, appearance, or mood changes completely and often suddenly. It can be used for both positive and negative changes. （状況、様子、雰囲気などが完全に、そしてしばしば急に変わることを表します。プラスにもマイナスにも使われます。）
- 急激: Describes a sudden and intense change or action. Often used with verbs like 変化する (to change) or 増加する (to increase). Can be an adverb (急激に) or a な-adjective.
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