DictionaryAI

brilliant

BRIL-yuhnt/ˈbɹɪljənt/

Noun pluralbrilliants

10 meanings of brilliant

Practice

  1. 1
    outstandingadjective
    Extremely good and impressive.

    Like a meal so good you still remember it years later.

    The orchestra gave a brilliant performance that left the audience speechless.

    The band gave a brilliant show, and the crowd cheered for more.

    UsageIt already means very good, so people often say absolutely brilliant or simply brilliant.

    Similarsuperb, excellent, outstanding, magnificent, splendid

    Oppositemediocre, poor, terrible, dreadful

    Note
  2. 2
    highly intelligentadjective
    Very smart, with an unusual ability to think and understand.

    Like someone who finds the answer faster than everyone else in the room.

    She is a brilliant student who solves hard problems with ease.

    Everyone agreed the young scientist was brilliant.

    UsageSay brilliant at something: brilliant at math.

    Similarintelligent, clever, gifted, smart, talented

    Oppositestupid, dull, dim

  3. 3
    shining lightadjective
    Shining with very strong, bright light.

    Like sunlight bouncing off fresh white snow.

    The brilliant sunlight made us squint as we left the cabin.

    Stars looked brilliant against the dark desert sky.

    Similarbright, dazzling, radiant, gleaming, glittering

    Oppositedull, dim, dark

    Note
  4. 4
    vivid coloradjective
    Very bright and full of strong, rich color.

    Like the color of a ripe orange in full sunlight.

    She painted the front door a brilliant red.

    The tropical bird's feathers were a brilliant blue.

    Similarvivid, vibrant, bright, intense, rich

    Oppositepale, dull, muted, drab

  5. 5
    cut diamondnouncountable
    A diamond or other gem cut with many flat faces so it sparkles.

    Like a tiny mirror cut to catch and throw light back at you.

    The jeweler set a sparkling brilliant into the gold ring.

    She inherited a small brilliant from her grandmother.

    Note

Practice

Can you tell the meanings of brilliant apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origin

It came into English from French "brillant," meaning shining. This came from Italian, and possibly from Latin and Greek words for "beryl," a kind of gem.

Checked 7 Nov 2026 · 5 facts