as in genius
a very smart person
a techie who always has to have the latest gadget that the brainiacs in Silicon Valley have cooked up
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Recent Examples of brainiac
There’s something rare about Swain, who is a young brainiac, but one who has built his business the old-fashioned, pre-quant-trading and Excel models Wall Street way, via charm offensives that weave webs of tight relationships few rivals can match.
—
Shawn Tully, Fortune, 1 Nov. 2025
There’s no way of knowing who’s the brainiac in the Swift brood, but one Norwegian study showed the oldest child has an IQ that averages three points higher than that of the second oldest, while the second child, in turn, is one point smarter than the third.
—Jeffrey Kluger, Time, 3 Oct. 2025
In addition to the Ivy League brainiacs, Chen employs an army of a million-plus gig workers from more than 50 countries around the world who help come up with questions that might stump AI, evaluating the models’ responses and writing criteria that help AI generate a perfect response.
—Danielle Chemtob, Forbes.com, 17 Sep. 2025
Both are wicked smart brainiacs on a tireless quest to do good in the world.
—Natasha Stoynoff, PEOPLE, 7 Sep. 2025
See All Example Sentences for brainiac
Shawn Tully, Fortune, 1 Nov. 2025
There’s no way of knowing who’s the brainiac in the Swift brood, but one Norwegian study showed the oldest child has an IQ that averages three points higher than that of the second oldest, while the second child, in turn, is one point smarter than the third.
—Jeffrey Kluger, Time, 3 Oct. 2025
In addition to the Ivy League brainiacs, Chen employs an army of a million-plus gig workers from more than 50 countries around the world who help come up with questions that might stump AI, evaluating the models’ responses and writing criteria that help AI generate a perfect response.
—Danielle Chemtob, Forbes.com, 17 Sep. 2025
Both are wicked smart brainiacs on a tireless quest to do good in the world.
—Natasha Stoynoff, PEOPLE, 7 Sep. 2025
See All Example Sentences for brainiac
Recent Examples of Synonyms for brainiac
Noun
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Kawamura has also given us a genuinely genius take on the waking existential crisis that is 21st century living.—
David Fear,
Rolling Stone,
10 Apr. 2026
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Oprah Winfrey is feeling stronger than ever at 72, and her workout look doubles as a genius solution for navigating spring's in-between temperatures.—
Nicol Natale,
PEOPLE,
10 Apr. 2026
Noun
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Every version of Merlin the wizard, spanning an expansive gender spectrum.—
Jaclyn Cosgrove,
Los Angeles Times,
10 Apr. 2026
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Daniel Bernhardt is Deathstalker, a legendary swordsman stuck with a cursed amulet who befriends swamp monsters and teams with a mini wizard (voiced by Patton Oswalt) to stop a dark magic from ruling the land.—
Brian Truitt,
USA Today,
10 Apr. 2026
Noun
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In 2026, nerds who love storytelling aren’t just consuming and collecting VHS culture.—
Alison Foreman,
IndieWire,
16 Apr. 2026
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And every film nerd knows that the production’s depravity and delirium almost surpasses the film’s—Apocalypse Now’s Wikipedia page is as wild as the film itself.—
Literary Hub,
Literary Hub,
15 Apr. 2026
Noun
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Delgado suffered a massive brain bleed during a competitive boxing match with another trainee the next morning and died a day later.—
Matt Schooley,
CBS News,
15 Apr. 2026
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But Cherry was the brains of the operation and frequently the mouth, and always the person who made sure that everything got done.—
Literary Hub,
Literary Hub,
15 Apr. 2026
Cite this Entry
“Brainiac.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/brainiac. Accessed 19 Apr. 2026.
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