plural no-no's or no-nos
Synonyms of no-nonext
1
: something unacceptable or forbidden
2

Examples of no-no in a Sentence

Recent Examples on the Web
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.
Another no-no — especially after some time has passed — is just sending a request for the money, sans context, on Venmo. Ryan Ermey, CNBC, 4 Apr. 2026 Much like in the fashion world, animal patterns such as cheetah and leopard print are even making a comeback in bolder spaces (although high-contrast black and white is still a no-no, even in zebra prints). Cori Sears, The Spruce, 3 Apr. 2026 People even had them as pets (though that’s a no-no today). Matt Leclercq, Fort Worth Star-Telegram, 30 Mar. 2026 Traditionally, shorts and boots are a no-no. Kelsey Stiegman, Glamour, 26 Mar. 2026 See All Example Sentences for no-no

Word History

First Known Use

circa 1942, in the meaning defined at sense 1

Time Traveler
The first known use of no-no was circa 1942

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Cite this Entry

“No-no.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/no-no. Accessed 5 Apr. 2026.

Kids Definition

no-no

noun
ˈnō-ˌnō
plural no-no's or no-nos
: something that is unacceptable or forbidden

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