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Synonyms

genius

American  
[jeen-yuhs] / ˈdʒin jəs /

noun

geniuses, plural genii plural
  1. an exceptional natural capacity of intellect, especially as shown in creative and original work in science, art, music, etc..

    the genius of Mozart.

    Synonyms:
    wit, ingenuity, intelligence
  2. a person having such capacity.

  3. a person having an extraordinarily high intelligence rating on a psychological test, as an IQ above 140.

    Synonyms:
    brainiac, brain, whiz, expert, master
    Antonyms:
    dope, half-wit, imbecile, idiot, ninny, nitwit, blockhead, numbskull, dolt, dullard, dunce, simpleton, fool, moron
  4. natural ability or capacity; strong inclination.

    a special genius for leadership.

    Synonyms:
    flair, bent, knack, penchant, predilection, endowment, faculty, aptitude, talent, gift, wizardry
  5. distinctive character or spirit, as of a nation, period, or language.

  6. the guardian spirit of a place, institution, etc.

  7. either of two mutually opposed spirits, one good and the other evil, supposed to attend a person throughout life.

  8. a person who strongly influences for good or ill the character, conduct, or destiny of a person, place, or thing.

    Rasputin, the evil genius of Russian politics.

  9. Islamic Mythology. jinn; genie.

  10. genie.


genius British  
/ ˈdʒiːnɪəs, -njəs /

noun

  1. a person with exceptional ability, esp of a highly original kind

  2. such ability or capacity

    Mozart's musical genius

  3. the distinctive spirit or creative nature of a nation, era, language, etc

  4. a person considered as exerting great influence of a certain sort

    an evil genius

  5. Roman myth

    1. the guiding spirit who attends a person from birth to death

    2. the guardian spirit of a place, group of people, or institution

  6. Arabian myth (usually plural) a demon; jinn

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

Plural word for genius The plural form of genius can be either geniuses or genii, pronounced [ jee-nee-ahy ], depending on the intended meaning of the word. Geniuses is much more commonly used. The plural forms of several other singular words that end in -us are also formed in this way, such as virus/viruses, callus/calluses, and status/statuses. Irregular plurals that are formed like genii, such as radius/radii or cactus/cacti, derive directly from their original pluralization in Latin. However, the standard English plural -es is often also acceptable for these terms, as in radiuses and cactuses.

Other Word Forms

Noun Inflected Forms

Etymology

Origin of genius

First recorded in 1350–1400; Middle English, from Latin: “tutelary deity or genius of a person”; cf. genus

Explanation

Genius is an exceptional talent or skill, something above and beyond the norm. A genius is someone who possesses this brilliance, like a child prodigy who learned the piano at age 3 and played sold-out concerts by age 5. Genius comes from the Latin word of the same name, meaning "guardian deity or spirit which watches over each person from birth" or "innate ability." Your genius — your superior talent — at the game of chess could make you a world champion. Your amazing genius would also make you a genius. The word can be used more lightheartedly to describe a natural ability or flair for something. You may have a genius for putting together stylish outfits.

Keep Reading on Vocabulary.com

Vocabulary lists containing genius

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

And Argentina advanced past Switzerland despite a quiet night from its 39-year-old genius in residence, Lionel Messi.

From The Wall Street Journal Jul. 12, 2026

Messi's genius has always been rooted in improvisation.

From BBC Jul. 11, 2026

The very exercise of the penalty kick strips away many parts of the game where Messi usually flexes his genius.

From The Wall Street Journal Jul. 8, 2026

I know people who just thought that was a genius cold open.

From Salon Jul. 5, 2026

It also rewired my brain, transforming me into Lucille Fanny Callahan, math genius.

From "The Miscalculations of Lightning Girl" by Stacy McAnulty

And how could they be in any art that is, above and beyond all else, a celebration of genii loci, spirits of place?

From New York Times May 4, 2023

It turns out that swifts, beloved genii locorum of bright summer streets, are just as much nocturnal creatures of thick summer darkness.

From New York Times Jul. 29, 2020

The registration spells the Latin word "genii", meaning magical person or being.

From BBC May 15, 2011

"We could become a nation of typographic genii through a litany of design atrocities," Bents reasoned.

From The Guardian Oct. 16, 2010

I am inclined to think that they look on them as the abodes of genii, always malignant, and requiring to be propitiated.

From Journeys in Persia and Kurdistan, Volume II (of 2) Including a Summer in the Upper Karun Region and a Visit to the Nestorian Rayahs by Bird, Isabella L. (Isabella Lucy)

But at that time it created a problem because you had these critics and these NBC executives; they were riding high because they had “Seinfeld,” they felt like they were geniuses.

From Salon Jul. 5, 2026

"He is a player blessed by God. Football geniuses have something special, and he has it," De la Fuente said.

From BBC Jun. 4, 2026

Collect all the geniuses of this planet, and that’s what Miles is in one note.

From Los Angeles Times May 25, 2026

Springsteen called the musician a writer in the lineage of "geniuses" and "natural rebels" like Woody Guthrie, Hank Williams, Miles Davis, Aretha Franklin and Bob Dylan.

From BBC Mar. 12, 2026

Then Lori heard about a scholarship sponsored by a literary society for the student who created the best work of art inspired by one of the geniuses of the English language.

From "The Glass Castle" by Jeannette Walls

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