know-it-all
noun
: one who claims to know everything
also
: one who disdains advice
know-it-all
adjective
Examples of know-it-all in a Sentence
Recent Examples on the Web
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
Here are our picks and predictions for the men’s hockey tournament, with expert analysis and critique from senior writers Sean Gentille, Mark Lazerus and James Mirtle, analytics know-it-all Shayna Goldman and goaltending expert Jesse Granger.
—Shayna Goldman, New York Times, 9 Feb. 2026
Congratulations, your moment has come to be an unrepentant know-it-all on social media.
—Hannah Keyser, CNN Money, 30 Jan. 2026
This is not a home for doomers, cynics, or know-it-alls.
—Daphne Koller, Big Think, 29 Jan. 2026
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Alexa Beck, Fortune, 15 Feb. 2026
Here are our picks and predictions for the men’s hockey tournament, with expert analysis and critique from senior writers Sean Gentille, Mark Lazerus and James Mirtle, analytics know-it-all Shayna Goldman and goaltending expert Jesse Granger.
—Shayna Goldman, New York Times, 9 Feb. 2026
Congratulations, your moment has come to be an unrepentant know-it-all on social media.
—Hannah Keyser, CNN Money, 30 Jan. 2026
This is not a home for doomers, cynics, or know-it-alls.
—Daphne Koller, Big Think, 29 Jan. 2026
See All Example Sentences for know-it-all
Cite this Entry
“Know-it-all.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/know-it-all. Accessed 21 Feb. 2026.
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