Intelligent vs She's really bright

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

Intelligent

Top 1,000 (very common)A2adjective

She's really bright

Top 2,000 (common)
Most common: Intelligent
 IntelligentShe's really bright
Pronunciation🇬🇧 /["/ɪnˈtelɪdʒənt/"]/🇺🇸 /["/ɪnˈtelɪdʒənt/"]/🇬🇧 //ʃiːz ˈrɪəli braɪt//🇺🇸 //ʃiz ˈrɪli braɪt//
MeaningSmart or able to think well.She is very smart.
ExampleThe intelligent student quickly solved the math problem.She's really bright; she always gets top marks in her class.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA2-
Part of speechadjective
Collocationsbe, look, seem, extremely, fairly, veryreally bright student, bright ideas, bright mind, bright future, bright personality
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 'brightly' - 'bright' is an adjective, not an adverb., Think 'bright' only refers to light - it also means smart., Overusing 'bright' in contexts where more specific intelligence terms are better.
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.This phrase is informal and often used to praise someone's intelligence. It's appropriate in casual conversation but may feel too informal in formal settings.

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Intelligent
She's really bright

Frequently asked questions: Intelligent vs She's really bright

What's the difference between Intelligent and She's really bright?

Intelligent: Smart or able to think well. She's really bright: She is very smart.

Which is more common: Intelligent and She's really bright?

Intelligent is the most common in everyday English.

Can you show an example of each?

Intelligent: The intelligent student quickly solved the math problem. She's really bright: She's really bright; she always gets top marks in her class.

Can I use Intelligent and She's really bright interchangeably?

Not always. Intelligent and She's really bright 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.

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