Intelligent vs You're a genius

When to use each in English, with meaning, register, and examples.

Intelligent

Top 1,000 (very common)A2adjective

You're a genius

InformalTop 2,000 (common)
Most formal: IntelligentMost common: Intelligent
 IntelligentYou're a genius
Pronunciation🇬🇧 /["/ɪnˈtelɪdʒənt/"]/🇺🇸 /["/ɪnˈtelɪdʒənt/"]/🇬🇧 //jʊəəˈdʒiː.ni.əs//🇺🇸 //jʊr ə ˈdʒin.jəs//
MeaningSmart or able to think well.You are very smart.
ExampleThe intelligent student quickly solved the math problem.After solving the puzzle so quickly, I said, 'You're a genius!'
RegisterNeutralInformal
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA2-
Part of speechadjective
Collocationsbe, look, seem, extremely, fairly, verycall someone a genius, you're such a genius, act like a genius
Antonymsunintelligent, stupid, dull-
Common mistakesConfused with 'intellect' which refers more to reasoning ability., Mistakenly using as a noun instead of an adjective (e.g., 'an intelligent' instead of 'an intelligent person').Confused with 'you're a genius' as an insult instead of a compliment., Using it in formal situations where modesty is expected., Overusing it, making it sound insincere.
Usage notesUse 'intelligent' to describe someone who has a high ability to learn or understand. It’s generally positive and can apply in both formal and informal contexts. Avoid using it sarcastically.Used informally to compliment someone's intelligence. Typically used in friendly contexts and may sound exaggerated.

See it in real clips

Intelligent
You're a genius

Frequently asked questions: Intelligent vs You're a genius

What's the difference between Intelligent and You're a genius?

Intelligent: Smart or able to think well. You're a genius: You are very smart.

Which is more formal: Intelligent and You're a genius?

Intelligent is the most formal of these.

Which is more common: Intelligent and You're a genius?

Intelligent is the most common in everyday English.

Can you show an example of each?

Intelligent: The intelligent student quickly solved the math problem. You're a genius: After solving the puzzle so quickly, I said, 'You're a genius!'

Can I use Intelligent and You're a genius interchangeably?

Not always. Intelligent and You're 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.

Related comparisons