brainiac

noun

ˈbrā-nē-ˌak How to pronounce brainiac (audio)
Definition of brainiacnext
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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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of brainiac Not the brainiacs in charge, apparently. — Rachel Marsden, Hartford Courant, 17 Apr. 2026 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 See All Example Sentences for brainiac
Recent Examples of Synonyms for brainiac
  1. genius
  2. wizard
  3. nerd
  4. brain
Noun
  • Custom zellige tiles imported from Fez cover the walls of the kitchen and baths, where Helen’s genius for juxtaposing colors and materials comes into high relief.
    — Mayer Rus, Architectural Digest, 12 Nov. 2026
  • The genius of this mac ’n’ cheese Edna Lewis recipe, with some slight tweaks, is in the details — both cubed and grated cheddar, and a balance of spices.
    — Laurie Ochoa, Los Angeles Times, 12 Nov. 2026
Definition of genius
Noun
  • Among the counties now favoring Colom is Forrest County, home to Hattiesburg and named for Confederate general Nathan Bedford Forrest, the Ku Klux Klan’s first grand wizard.
    — Catherina Gioino, Fortune, 6 Nov. 2026
  • Forrest County’s Competing Legacies Nathan Bedford Forrest, a Tennessee slave trader who became a Confederate general, later served as the first grand wizard of the Ku Klux Klan during Reconstruction.
    — Sam Stevenson, MSNBC Newsweek, 6 Nov. 2026
Definition of wizard
Noun
  • With a group of other young, bright-eyed theater nerds, Kirk became an early member of the Naked Theater, a grassroots company that existed for just a few years.
    — Lucy Gellman, Hartford Courant, 13 Nov. 2026
  • Twenty-five years ago, Kevin Lewandowski founded Discogs, arguably the destination online for obsessive vinyl collectors and music nerds of all stripes.
    — Terrence O'Brien, The Verge, 7 Nov. 2026
Definition of nerd
Noun
  • Osage orange produces massive green monkey brain fruits full of seeds that can dent your car and give you a concussion.
    — Carl R. Gold, Baltimore Sun, 8 Nov. 2026
  • Nearly every medical student learns about the coagulation cascade, but not all doctors know or remember how to diagnose and treat an infant who shows up in an ER bleeding, often in the brain and invisible to the eye.
    — Duaa Eldeib, ProPublica, 8 Nov. 2026
Definition of brain

Browse Nearby Words

brained
brainiac
brainiacs
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Cite this Entry

“Brainiac.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/brainiac. Accessed 15 Nov. 2026.

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