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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This has been, in no small part, because Russia’s writers have often played an antagonistic role in the efforts of Russia’s rulers to shape a particular image of the country, including Alexander Pushkin and Leo Tolstoy—arguably Russia’s two most iconic literary geniuses.—
Literary Hub,
Literary Hub,
18 May 2026
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Jeffries was hailed as a messaging genius, and his status as a rising star was cemented.—
Jason Zengerle,
New Yorker,
18 May 2026
Noun
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The brick-and-mortar Harbaugh gets to face off against scheme wizard Sean McVay.—
Steven Louis Goldstein,
New York Times,
16 May 2026
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Since co-founding Vampire Weekend 20 years ago and producing the band’s first three albums, Rostam Batmanglij has enjoyed a unique profile as a pop songwriter and studio wizard, especially for a guy whose sound never really left his old band’s highbrow sensibilities behind.—
Jon Dolan,
Rolling Stone,
14 May 2026
Noun
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This is a must-do for botany nerds seeking a nature fix.—
Condé Nast,
Condé Nast Traveler,
12 May 2026
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And the Model 3 appealed to tech nerds because it was packed with software-upgradeable tech like Autopilot and FSD.—
Brooke Crothers,
Forbes.com,
10 May 2026
Noun
-
This seems to be a common initial response of the brain to drugs that can lead to addiction.—
Literary Hub,
Literary Hub,
13 May 2026
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Collins’ death at age 47, which was announced on May 12, following a monthslong battle with an aggressive form of brain cancer left not only the sports world but also LGBT advocates across the country in mourning.—
Chad de Guzman,
Time,
13 May 2026
Cite this Entry
“Brainiac.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/brainiac. Accessed 20 May. 2026.
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