Constant vs Lifelong
When to use each in English, with meaning, register, and examples.
| Constant | Lifelong | |
|---|---|---|
| Meaning | Something that stays the same and doesn't change. | lasting for the whole life |
| CEFR level | B2 | C1 |
| Part of speech | adjective | adjective |
| Usage notes | Use 'constant' when discussing something that remains unchanged over time. It can be used in both formal and informal contexts, but is often used in academic or scientific discussions. | Use 'lifelong' to describe commitments or experiences that last a person's entire life. It's appropriate in both formal and informal contexts, but avoid it in casual conversations where simpler terms might suffice. |
Frequently asked questions: Constant vs Lifelong
What's the difference between "Constant" and "Lifelong"?
"Constant" means: Something that stays the same and doesn't change. "Lifelong" means: lasting for the whole life
When should I use "Constant" and "Lifelong"?
They can all be used in everyday English.
Are "Constant" and "Lifelong" the same CEFR level?
"Constant" is at B2, "Lifelong" is at C1 on the CEFR scale.