Cool MateBrilliant vs You are a genius
When to use each in English, with meaning, register, and examples.
Brilliant
Top 1,000 (very common)A2adjective
You are a genius
InformalBeyond 10,000 (less common)
Most formal: BrilliantMost common: Brilliant
| Brilliant | You are a genius | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈbrɪliənt/"]/🇺🇸 /["/ˈbrɪliənt/"]/ | 🇬🇧 //jʊ əre ə ˈdʒiː.ni.əs//🇺🇸 //ju ɑr ə ˈdʒiː.njəs// |
| Meaning | Very bright or smart. | You are very smart. |
| Example | That was a brilliant performance by the actor. | I can't believe you solved that puzzle so fast! You are a genius! |
| Register | Neutral | Informal |
| How common | Top 1,000 (very common) | Beyond 10,000 (less common) |
| CEFR level | A2 | - |
| Part of speech | adjective | |
| Collocations | be, look, just, really, truly, at, be, look, just, really, truly, at, be, look, just, really, truly, at | you are a genius, feel like a genius, call someone a genius, act like a genius, genuinely a genius |
| Antonyms | dull, dim, stupid | - |
| Common mistakes | 'Brilliant' is often confused with 'good' – 'brilliant' conveys a much stronger positive meaning., Some learners use 'brilliant' as a verb instead of an adjective., Mixing it up with 'brilliance', which is a noun. | Overuse the phrase without sincerity., Use it sarcastically when the context doesn't fit., Mispronounce 'genius' as 'genius'. |
| Usage notes | Use 'brilliant' to describe something very intelligent or something that shines brightly. It's suitable for both formal and informal contexts but may sound overly grand in casual situations. | Use this phrase to compliment someone's intelligence or creativity. It is suitable among friends but less formal in professional settings. |
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Frequently asked questions: Brilliant vs You are a genius
What's the difference between Brilliant and You are a genius?
Brilliant: Very bright or smart. You are a genius: You are very smart.
Which is more formal: Brilliant and You are a genius?
Brilliant is the most formal of these.
Which is more common: Brilliant and You are a genius?
Brilliant is the most common in everyday English.
Can you show an example of each?
Brilliant: That was a brilliant performance by the actor. You are a genius: I can't believe you solved that puzzle so fast! You are a genius!
Can I use Brilliant and You are a genius interchangeably?
Not always. Brilliant and You are a genius are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.