How to Use know-it-all in a Sentence

know-it-all

noun
  • This is not a home for doomers, cynics, or know-it-alls.
    — Daphne Koller, Big Think, 29 Jan. 2026
  • In fact, some know-it-all called this race more or less over just a week ago.
    — Glenn Whipp, Los Angeles Times, 2 Mar. 2026
  • The moon’s clash with Mars brings out your inner know-it-all.
    — USA TODAY, 11 May 2024
  • In short, there’s something in it for everyone, from novices to know-it-alls.
    — Spin Contributor, SPIN, 7 July 2023
  • All fans have a voice and a point of view now, the know-it-alls, the normies, the honest, and, of course, the trolls.
    — Matthew Gilbert, BostonGlobe.com, 26 May 2023
  • My, how the snotty, rich, entitled, know-it-all kid has fallen.
    — Brian T. Allen, National Review, 18 Jan. 2024
  • Ignore imposter syndrome and the opinions of know-it-alls.
    — Usa Today, USA Today, 11 Oct. 2025
  • Normally, know-it-alls are kind of annoying.
    — Marci Robin, Allure, 19 Dec. 2025
  • The former is, at least according to one know-it-all, the best holiday show or movie of all time.
    — Bill Goodykoontz, The Arizona Republic, 14 Feb. 2024
  • But Tracee Chimo, who plays a bubbly, know-it-all maid, is a standout.
    — Brent Lang, Variety, 20 Apr. 2026
  • Get expert advice rather than listening to a know-it-all who will point you in the wrong direction.
    — Eugenia Last, The Mercury News, 26 Jan. 2024
  • His glib, know-it-all style may impress some in the media, but his crisis-management skills are awful.
    — Matthew Continetti, National Review, 25 Feb. 2023
  • On May 28th, two very online know-it-alls got into a tiff on Twitter.
    — Clare Malone, The New Yorker, 13 June 2023
  • My 21-year-old grandson is a dramatic and arrogant know-it-all.
    — Jeanne Phillips, The Mercury News, 26 Sep. 2024
  • Smart-assed, competent and a bit of a know-it-all, PJ runs his roost like mission control.
    — Rosy Cordero, Deadline, 24 Mar. 2026
  • Don’t let a know-it-all attitude set you back or cause others to withhold information.
    — Eugenia Last, The Mercury News, 30 July 2024
  • One of the most horrifying things imaginable is being stuck with a know-it-all who's eager to debate.
    — Dennis Perkins, Entertainment Weekly, 31 Oct. 2025
  • Parker played the role of annoying little brother while Auburn was the know-it-all older sister.
    — Tim Meehan, San Diego Union-Tribune, 20 May 2024
  • Advertisement The most effective leaders are not, in fact, know-it-alls.
    — Simone Stolzoff, Time, 12 May 2026
  • Ginnie is bossy about other people’s behavior and Yvette is a know-it-all about diseases, having had so many.
    — Jesse Green, New York Times, 13 Sep. 2023
  • Elsewhere, elites are framed as bureaucratic, academic know-it-alls – and get sucked into the culture war in the process.
    — Alexa Beck, Fortune, 15 Feb. 2026
  • Side hustles for know-it-alls Notably, your knowledge doesn’t need to be encyclopedic or broad.
    — Kathy Kristof, San Diego Union-Tribune, 7 Aug. 2023
  • This outsider’s perspective judges America’s past by the lights of a cynical, know-it-all.
    — Armond White, National Review, 2 Oct. 2024
  • But the low point is its treatment of its female characters, who are painted as irritating, know-it-all nags who just get in the way of a good time.
    — Dave Nemetz, TVLine, 18 Oct. 2024
  • Not surprisingly, then, Xi’s know-it-all style of rule has led to a number of disastrous decisions.
    — Cai Xia, Foreign Affairs, 6 Sep. 2022
  • Successful teams today aren’t led by the know-it-all and always right A-type personalities.
    — John Hall, Forbes, 22 Dec. 2024
  • What kind of narcissistic know-it-all arrogant little person would take that attitude?
    — Sahaj Kaur Kohli, Washington Post, 22 June 2023
  • Even Della Guardia, that slimy know-it-all, seems like a bastion of integrity in comparison.
    — Rafaela Bassili, Vulture, 12 June 2024
  • George Bernard Shaw and James Thurber were stylistically hassled by certain know-it-alls.
    — Richard Lederer, San Diego Union-Tribune, 6 Jan. 2024
  • Williams portrayed the couple's seemingly perfect, know-it-all daughter, Laura.
    — Ingrid Vasquez, Peoplemag, 16 Sep. 2023

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'know-it-all.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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