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brilliant

A2
adjectivenoun

Pronunciation

UK

  • /brˈɪlɪənt/

US

  • /ˈbrɪljənt/

Description

"Brilliant" isn't just about being smart—though it certainly can be! It describes something exceptionally clever or talented. Think of a brilliant scientist making a groundbreaking discovery or a brilliant student acing every test. But "brilliant" also refers to intense brightness. A brilliant sunrise paints the sky with vibrant colors, and a brilliantly polished surface gleams and shines.

You might describe a solution to a difficult problem as "brilliant," meaning it's ingenious and effective. Or you could say someone has a "brilliant mind"—full of bright ideas! It's a word that evokes both intelligence and dazzling light, making it wonderfully versatile. In many English-speaking cultures, especially in the UK, "brilliant" is also used as a common exclamation of approval, much like saying "fantastic" or "wonderful" when hearing good news.

Examples

  1. 1

    Teaching ability

    Mia is a brilliant teacher who makes difficult topics easy to understand.

  2. 2

    Personal skill

    He's brilliant at finding cheap flights.

    • Pattern

      brilliant at + activity

      very good at that activity

  3. 3

    Good idea

    That was a brilliant idea to move the meeting online.

  4. 4

    Performance

    She gave a brilliant performance in the final concert.

  5. 5

    Weather

    We had brilliant weather for the whole weekend.

  6. 6

    Color

    The sea looked brilliant blue in the morning light.

  7. 7

    British response

    “I can pick you up at seven.” “Brilliant, see you then.”

    • Usage

      Brilliant can mean “great” or “that sounds good,” especially in British English.

  8. 8

    Sarcasm

    Brilliant, now I've left my keys in the office.

    • Usage

      Here brilliant is sarcastic.

Forms and spellings

2 forms open this card.

Main spelling

  • brilliantnounadjective

Forms

  • brilliantspluralnounadjective