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 Interrogator centers on former MI6 agent Conrad Henry and his team of outsider geniuses, who are brought in to solve cases after conventional policing and security hasn’t worked.
    — Jesse Whittock, Deadline, 8 Oct. 2026
  • From Big Talk Studios, the International Emmy Award-winning detective drama, starring David Mitchell and Anna Maxwell Martin, follows a genius puzzle setter navigating life as a police consultant.
    — Leo Barraclough, Variety, 7 Oct. 2026
Definition of genius
Noun
  • While Star Wars might be known for laser swords and space wizards, it's always been about weird little dudes doing even weirder things.
    — Hayes Madsen, Space.com, 2 Oct. 2026
  • View gallery - 3 images There was a time when intelligent rings were what your level-three wizard wore in a Dungeons and Dragons campaign.
    — New Atlas, New Atlas, 2 Oct. 2026
Definition of wizard
Noun
  • The problem is when the self-importance of festival political activism crosses wires with these horror nerds.
    — Joseph Kahn, HollywoodReporter, 8 Oct. 2026
  • Ilya is looking for work as an assistant, and the professor, with his dandyish nerd arrogance, tells him to look at a paper he’s written and come back in a few days.
    — Owen Gleiberman, Variety, 6 Oct. 2026
Definition of nerd
Noun
  • The show sees six pairs of contestants attempt to track down some of the biggest brains in Britain – six individuals known as The Chasers – in undisclosed locations across Europe.
    — Leo Barraclough, Variety, 5 Oct. 2026
  • Yet, despite these extraordinary advances, the brain still holds countless mysteries, with much more left to learn and discover and optogenetics has given us a powerful means to take on these challenges.
    — Jackie Flynn Mogensen, Scientific American, 5 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 9 Oct. 2026.

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