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synonym Comparative
徹底的
VS
急激

Differences Between "徹底的" and "急激"

Option A
徹底的
Meaning
thorough, exhaustive, drastic
Reading
てっていてき (tetteiteki)
Syllabus Level
N3
Practical Example
問題の原因を徹底的に調査する。
We will thoroughly investigate the cause of the problem.
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: "(thorough, exhaustive, drastic)"?
🎉 正解 / Correct!
使い分け解説:
- 徹底的: A な-adjective (形容動詞) or an adverb when used with に (徹底的に). It implies doing something completely, without omission, or to the fullest extent. Often used for actions like investigation (調査), cleaning (掃除), or reform (改革).
- 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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