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
  • The other two albums are devoted to the legendary bebop pianist, composer and improvisation genius Thelonius Monk.
    — Christopher Arnott, Hartford Courant, 9 Aug. 2026
  • The genius duo includes a lighter shade and a darker shade of the same undertone to create a seamless blend that doesn’t look heavy.
    — Reece Andavolgyi, InStyle, 8 Aug. 2026
Definition of genius
Noun
  • Hoult’s Gilderoy Lockhart a notoriously vain, boastful and fame-obsessed wizard well versed in Memory Charms who is recruited by Dumbledore as Professor of Defence Against the Dark Arts at Hogwarts.
    — Nellie Andreeva, Deadline, 11 Aug. 2026
  • But then they’re interrupted by Wil Wheaton, who’s a wizard in this universe.
    — Michael Schneider, Variety, 7 Aug. 2026
Definition of wizard
Noun
  • If that is not possible, be a nerd and tuck your long pants into your socks.
    — Carl R. Gold, Baltimore Sun, 14 Aug. 2026
  • Shane is an experienced deer-tracking dog handler, and Ryan is a data nerd by training and a diehard bowhunter.
    — Alex Robinson, Outdoor Life, 12 Aug. 2026
Definition of nerd
Noun
  • Olive oil is rich in healthy fats and antioxidants, which support heart, brain, and digestive health.
    — Randi Gollin, Martha Stewart, 16 Aug. 2026
  • These meals help keep children in school, improve their ability to learn and concentrate, and support healthy brain development.
    — ABC News, ABC News, 16 Aug. 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 Aug. 2026.

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