필수 vs 반드시
Korean word comparison
Listen to 필수
Listen to 반드시
| 필수 | 반드시 |
|---|---|
pil-SU adjective | bandeusi adjective |
| Something that is absolutely necessary; essential. | definitely; 반드시; without fail |
How they differ
반드시 is not a noun like 필수; it is an adverb that emphasizes certainty or obligation. It often modifies an action, while 필수 describes a thing or condition as essential.
When to use each
When to use 필수: Use 필수 when you are labeling something as essential or mandatory.
When to use 반드시: Use 반드시 when you want to stress that an action must happen or should not be omitted.
Side-by-side examples
- 안전모 착용은 필수입니다.
(Wearing a safety helmet is mandatory.) - 안전모를 반드시 착용하세요.
(Please be sure to wear a safety helmet.)
Register & nuance: 반드시 is very common in formal instructions, warnings, and strong recommendations.