as in know-all
informal + disapproving
a person who talks and behaves like someone who knows everything
My neighbor is a real know-it-all, always telling me what to do.
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Example Sentences
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Recent Examples of know-it-all
Ignore imposter syndrome and the opinions of know-it-alls.
—
Usa Today, USA Today, 11 Oct. 2025
By interacting with calendars, databases and other apps, AI is evolving from a know-it-all chatbot into a do-it-all digital teammate.
—Thanh Pham, Forbes.com, 16 Sep. 2025
Playing the know-it-all professor of anthropology was Eric Stoltz as Dr. Steven Cale.
—Stephanie Sengwe, PEOPLE, 16 Sep. 2025
Advertisement Advertisement Personally, I’d take the dumbass over the know-it-all any day.
—Garry Ridge, Time, 4 Aug. 2025
See All Example Sentences for know-it-all
Usa Today, USA Today, 11 Oct. 2025
By interacting with calendars, databases and other apps, AI is evolving from a know-it-all chatbot into a do-it-all digital teammate.
—Thanh Pham, Forbes.com, 16 Sep. 2025
Playing the know-it-all professor of anthropology was Eric Stoltz as Dr. Steven Cale.
—Stephanie Sengwe, PEOPLE, 16 Sep. 2025
Advertisement Advertisement Personally, I’d take the dumbass over the know-it-all any day.
—Garry Ridge, Time, 4 Aug. 2025
See All Example Sentences for know-it-all
Recent Examples of Synonyms for know-it-all
Noun
-
How well hidden are the implications of using some other app that has an indirect path to our friendly know-all? top comment Apple's New iPhone Accessory Is Part Sock, Part Crossbody Strap 1d $150 - $230 ! ! !—
PC Magazine,
PC Magazine,
11 Nov. 2025
Noun
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The 40-year-old singer Ryan Davis, a cowboy wiseacre with a drum machine and the patience for 11-minute anthems, riffs merrily on such existential mysteries.—
Spencer Kornhaber,
The Atlantic,
12 Dec. 2025
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In 1982’s hit action comedy 48 Hours, a young Eddie Murphy plays a wiseacre criminal on parole in order to help a veteran cop, played by Nick Nolte, solve a case.—
Pete Hammond,
Deadline,
4 Aug. 2025
Noun
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One year after his debut in Top Secret! and one year before stepping up as Top Gun's Iceman, Kilmer led Martha Coolidge's comedy Real Genius, playing a Caltech wiz-kid (and hard-partying wiseass) tasked with designing a chemical laser.—
Randall Colburn,
EW.com,
2 Apr. 2025
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But since the emergence of a kinder, gentler Deadpool in the wiseass character’s first stand-alone movie, Wade has carried on a long-distance flirtation with Wolverine.—
David Rooney,
The Hollywood Reporter,
23 July 2024
Noun
-
Broncos Country believes in this team, but the wise guys do not.—
Troy Renck,
Denver Post,
8 Dec. 2025
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Your corner defined you — wise guys as well as cops.—
Howie Carr,
Boston Herald,
6 Dec. 2025
Noun
-
Agnes came from a family of smarties.—
Bea L. Hines,
Miami Herald,
31 Oct. 2025
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The suffix -y here is the same as in words like doggy or smarty, used to form nicknames or informal descriptors.—
Erik Kain,
Forbes.com,
15 Sep. 2025
Noun
-
This fuzzy, snout-nosed, smart aleck extraterrestrial whose name was Gordon Shumway crashed in the suburban garage of the Tanner family in California after escaping from the doomed planet of Melmac, which was destroyed by nuclear war.—
Jeff Spry,
Space.com,
24 Aug. 2025
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Newton scored and so did backcourt mate Cam Spencer, that different style of smart aleck, who had 20.—
Dom Amore,
Hartford Courant,
13 June 2024
Cite this Entry
“Know-it-all.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/know-it-all. Accessed 26 Jan. 2026.
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