no-no

noun

ˈnō-ˌnō How to pronounce no-no (audio)
plural no-no's or no-nos
Synonyms of no-nonext
1
: something unacceptable or forbidden
2
: no-hitter

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.
Slippage or strain during extended wear is a big no-no for the designer. — Lily Templeton, Footwear News, 2 July 2026 In this bland, milquetoast world, freedom to express oneself through music is a big no-no. — David John Chávez, Mercury News, 18 June 2026 And while technique matters (dry shaving is a big no-no), your post-shower routine could also be partly to blame. — Emma-Jade Stoddart, Glamour, 5 July 2026 Invasive Plants Speaking of privacy screens, invasive plants like bamboo are a no-no. — Brandee Gruener, Southern Living, 30 June 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

Rhymes for no-no

See All Rhymes for no-no

Browse Nearby Words

nonny-nonny
no-no
nonobjective
See all Nearby Words

Cite this Entry

“No-no.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/no-no. Accessed 8 Jul. 2026.

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Kids Definition

no-no

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

More from Merriam-Webster on no-no

Thesaurus: All synonyms and antonyms for no-no

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