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
  • Guadagnino speaks in calligraphy; adjectives almost certainly accompany a proper name — the extraordinary, the wonderful, the genius.
    — E. Alex Jung, Vulture, 2 Oct. 2026
  • No sooner than the broadcast of the Braves’ Wild Card Series game began Tuesday, showing pockets of empty seats at Truist Park, the social-media geniuses blessed us with their bouquets of wisdom.
    — Ken Sugiura, AJC.com, 1 Oct. 2026
Definition of genius
Noun
  • For the seventh year, there will be costumes, quests and magic for every wizard, witch and muggle.
    — Janet Kusterer, Baltimore Sun, 23 Sep. 2026
  • Atari wore elephant-print pants and a purple wizard’s cloak, and kept handy a face mask emblazoned with the words what if love wins?
    — J. B. MacKinnon, Harpers Magazine, 22 Sep. 2026
Definition of wizard
Noun
  • No, the Unabomber, a onetime math genius and professor named Ted Kaczynski, was basically a hermit nerd in a Montana cabin who mailed bombs to scientists, engineers, professors, and other elites.
    — Bilge Ebiri, Vulture, 25 Sep. 2026
  • Today’s Theme This crossword is a tribute to Scrabble, another beloved pastime of word nerds.
    — New York Times, New York Times, 24 Sep. 2026
Definition of nerd
Noun
  • The new study by researchers from Hebrew University of Jerusalem revealed that the striatum is a brain region involved in moment-to-moment action selection.
    — Prabhat Ranjan Mishra, Interesting Engineering, 28 Sep. 2026
  • In 2022, Lisa completed her bulimic and alcoholic self-destruction by means of a brain bleed.
    — Literary Hub, Literary Hub, 28 Sep. 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 3 Oct. 2026.

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