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 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 Our sweet brainiac med student, Javadi, realizes that not-so-sweet brainiac med student Ogilvie might be some real competition for a spot in the ED residency program at PTMC. — Maggie Fremont, Vulture, 16 Jan. 2026 See All Example Sentences for brainiac
Recent Examples of Synonyms for brainiac
  1. genius
  2. wizard
  3. nerd
  4. brain
Noun
  • For the 20th season, a callback to her first-ever tagline and also her greatest catchphrase is pretty genius.
    — Brian Moylan, Vulture, 17 July 2026
  • This is a lovely book about opera, music, 19th-century Vienna, and the psychology of genius.
    — Diana Arterian, Literary Hub, 16 July 2026
Definition of genius
Noun
  • Their quest pits them against wizards, monsters, dragons, and a sinister conspiracy in a lighthearted fantasy adventure inspired by the tabletop RPG.
    — Erik Kain, Forbes.com, 11 July 2026
  • The books about the life of a young wizard were adapted into a movie series that debuted in 2001 with Daniel Radcliffe, Emma Watson and Rupert Grint.
    — Raven Brunner, PEOPLE, 1 July 2026
Definition of wizard
Noun
  • Schedule nerds may be interested that American offered 28 and 27 flights ​to Kansas ​City on July ​9 and 10, with 373 and 372 flights ​to ​its Miami hub on the same two days.
    — Ted Reed, Forbes.com, 11 July 2026
  • The supermodel was one of the most surprising people to make the guest list, causing pandemonium amongst Swifties and pop culture nerds alike when she was photographed heading to the wedding in a gorgeous gold silk gown (what a gold rush).
    — Maya Georgi, Rolling Stone, 6 July 2026
Definition of nerd
Noun
  • By triggering the release of a natural growth factor in the brain and modulating neural pathways associated with addiction and reward, ibogaine restores healthy dopamine function and reduces cravings, Barsuglia said.
    — Gavin Escott, USA Today, 6 July 2026
  • The answer to us was to stay calm, use our brains and think our way through it.
    — Paul Newman, New York Times, 5 July 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 18 Jul. 2026.

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