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
Both are wicked smart brainiacs on a tireless quest to do good in the world.
—
Natasha Stoynoff, PEOPLE, 7 Sep. 2025
The two brainiacs representing Colorado at the Scripps National Spelling Bee outside Washington, D.C., this week advanced through the first three rounds of the competition Tuesday.
—Elizabeth Hernandez, Denver Post, 28 May 2025
The Scooby gang needs its brainiac (who also knows how to rock a mod pair of specs).
—Maureen Lee Lenker, EW.com, 28 Mar. 2025
Because bonobos are brainiacs, pinpointing the cup with the treat should have been no sweat.
—Jack Tamisiea, Scientific American, 3 Feb. 2025
See All Example Sentences for brainiac
Natasha Stoynoff, PEOPLE, 7 Sep. 2025
The two brainiacs representing Colorado at the Scripps National Spelling Bee outside Washington, D.C., this week advanced through the first three rounds of the competition Tuesday.
—Elizabeth Hernandez, Denver Post, 28 May 2025
The Scooby gang needs its brainiac (who also knows how to rock a mod pair of specs).
—Maureen Lee Lenker, EW.com, 28 Mar. 2025
Because bonobos are brainiacs, pinpointing the cup with the treat should have been no sweat.
—Jack Tamisiea, Scientific American, 3 Feb. 2025
See All Example Sentences for brainiac
Recent Examples of Synonyms for brainiac
Noun
-
Michael Malone, during his Nuggets days, was a genius at creating enemies, of underlining slights that may or may not have ever been real.—
Sean Keeler,
Denver Post,
13 Jan. 2026
-
There’s even a Radiohead art-rock mantra that seems to come directly from Kelson’s mad-genius mind.—
David Rooney,
HollywoodReporter,
13 Jan. 2026
Noun
-
Who were the ad wizards who came up with that one?—
Sean Gentille,
New York Times,
3 Jan. 2026
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This wizard doesn’t even use a curtain.—
Leonard Greene,
New York Daily News,
3 Jan. 2026
Noun
-
Good-looking nerds with glamorous jobs, but still nerds.—
Grace Gavilanes,
PEOPLE,
14 Jan. 2026
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The award for cinematic and box office achievement went to Sinners, so Göransson was able to take the stage on the telecast (as a key member of the creative team of Ryan Coogler’s film), though only music nerds would have been able to ID him.—
Paul Grein,
Billboard,
12 Jan. 2026
Noun
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But there was no way to get out of it because that was just where my brain and my heart were.—
Raechal Shewfelt,
Entertainment Weekly,
15 Jan. 2026
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Just reading the synopsis opened some deep door in my brain.—
Diana Arterian,
Literary Hub,
15 Jan. 2026
Cite this Entry
“Brainiac.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/brainiac. Accessed 18 Jan. 2026.
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