DictionaryAI

genius

JEEN-yuhs/ˈd͡ʒin.jəs/UKJEE-nee-uhs/ˈd͡ʒiː.ni.əs/

Pluralgeniuses, genii

5 meanings of genius

Practice

  1. 1
    brilliant personnouncountable
    A person with unusual intelligence or skill, often shown by creative or original work.

    Like a star athlete, but for thinking and making new things.

    Everyone called her a genius after she solved the puzzle in seconds.

    The young genius built a working robot at the age of ten.

    UsageMore than one: geniuses.

    Similarprodigy, virtuoso, mastermind, maestro, brain

    Oppositeidiot

    Note
  2. 2
    great talentnoununcountable
    A very rare and great ability to think or create, or a flash of brilliant thinking.

    Like having a super-powered brain for learning and ideas.

    Her genius for math showed itself very early in school.

    It took real genius to make such a hard idea feel simple.

    UsageSay she has a genius for numbers.

    Similartalent, gift, brilliance, flair

    Note
  3. 3
    ingeniousadjectivecolloquial
    Very clever, smart, or original in a way that impresses people.

    Like an answer so smart it makes everyone say 'why didn't I think of that?'

    Her plan to fix the leak was absolutely genius.

    What a genius way to solve the parking problem!

    UsageSay a genius idea or that's genius.

    Similarbrilliant, ingenious, clever, inspired, smart

    Oppositestupid, dumb, idiotic

Less common meanings

  1. 4
    noununcountable
    The special nature of something, especially the part that makes it work well or stand out.

    The genius of the game is that you can learn the rules in one minute.

    Part of the genius of this little town is that everyone says hello on the street.

    UsageSay the genius of something.

    Similaressence, brilliance, beauty

    Note
  2. 5
    noun
    A guardian spirit believed to watch over a person or place.

Practice

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Origin

From Latin genius, meaning a person's inborn nature or guardian spirit, and also wit or brilliance. It came from a word meaning 'to beget or produce.'

Checked 1 Nov 2026 · 3 facts