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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Example Sentences
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Recent Examples of brainiac
Even at a flagship public university, the true type-A brainiacs might have to work harder to find one another.
—
Rose Horowitch,
The Atlantic,
4 Apr. 2026
The bright-eyed Redmayne really fits the part of a brainiac – especially in a story about one of our greatest minds.
—
Brian Truitt,
USA Today,
9 Mar. 2026
Like the other characters in the book, Harper is a stock figure, the brainiac child, but her fearlessness in the face of a crumbling, dishonest world reinvigorates the type.
—
Hannah Gold,
New Yorker,
21 Jan. 2026
Our sweet brainiac med student, Javadi, realizes that not-so-sweet brainiac med student Ogilvie might be some real competition for a spot in the ED residency program at PTMC.
—
Maggie Fremont,
Vulture,
16 Jan. 2026
See All Example Sentences for brainiac
Rose Horowitch,
The Atlantic,
4 Apr. 2026
The bright-eyed Redmayne really fits the part of a brainiac – especially in a story about one of our greatest minds.
—
Brian Truitt,
USA Today,
9 Mar. 2026
Like the other characters in the book, Harper is a stock figure, the brainiac child, but her fearlessness in the face of a crumbling, dishonest world reinvigorates the type.
—
Hannah Gold,
New Yorker,
21 Jan. 2026
Our sweet brainiac med student, Javadi, realizes that not-so-sweet brainiac med student Ogilvie might be some real competition for a spot in the ED residency program at PTMC.
—
Maggie Fremont,
Vulture,
16 Jan. 2026
See All Example Sentences for brainiac
Recent Examples of Synonyms for brainiac
Noun
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The market is oversaturated, and Riley is a genius for not only recognizing that but realizing that all of these new DJs are going to need lawyers to negotiate their contracts.
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Combining all the hits of a Southern breakfast (eggs, hashbrowns, sausage) into one oven-ready dish is a stroke of pure genius that lends itself to occasion brunches and morning celebrations.
Noun
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After climbing the Azkaban Escape Tower to the top, repel-style, young wizards-in-training, Clark and Emily Friscia, were ready to go home.
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And two other high-flying AI wizards — Anthropic and OpenAI — are working on their own mega offerings.
Noun
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In the film, the villain is not the Harvard nerds who initially shun Elle, but the ex-boyfriend who never saw her as anything more than a cardboard cutout of a girl with blonde hair and big boobs.
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Hunter Pence, a nerd at heart, spent money from his first paycheck to buy himself a gaming computer to play World of Warcraft.
Noun
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Lecture topics range from anxiety, stress and depression to mindfulness and brain health.
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The blasts of noise and oregano at Kafeneion, a restaurant above a wine bar in a building across from the city’s Victorian-era Parliament House, ricocheted my brain to my one trip to Athens a dozen years earlier.
Cite this Entry
“Brainiac.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/brainiac. Accessed 5 Jul. 2026.
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