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

Synonyms & Similar Words

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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
  • The Big Bang line that made the brand a household name grew into a smash hit after its creation by the industry’s famous marketing genius, Jean-Claude Biver, in 2005.
    — Simon de Burton, Robb Report, 15 Oct. 2026
  • In overtime, the Rams won the toss and elected to defend first, a decision that soon proved to be genius by coach Sean McVay.
    — Rohan Nadkarni, NBC news, 13 Oct. 2026
Definition of genius
Noun
  • Pittol is an ice cream wizard, capable of distilling the essence of nearly any flavor into frozen dessert form.
    — Jenn Harris, Los Angeles Times, 15 Oct. 2026
  • Since his host has a strict rule about using human avatars in this environment, the bad guy now presents as the gentleman from The Blacklist rocking a wizard’s beard.
    — David Fear, Rolling Stone, 12 Oct. 2026
Definition of wizard
Noun
  • On Monday morning, the world's econ nerds tuned in to an announcement from Sweden to learn who won this year's Nobel Prize in economics.
    — Greg Rosalsky, NPR, 13 Oct. 2026
  • The problem is when the self-importance of festival political activism crosses wires with these horror nerds.
    — Joseph Kahn, HollywoodReporter, 8 Oct. 2026
Definition of nerd
Noun
  • The music on Uncle feels innate, as if Funkhouser had dug these songs out from deep within the crawlspace in his brain.
    — Jeff Yerger, Pitchfork, 19 Oct. 2026
  • Detours and shortcuts in the brain The cells and synapses of the brain aren’t arranged in rigid, linear paths for each task and experience.
    — Sean Mccabe, Hartford Courant, 18 Oct. 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 20 Oct. 2026.

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