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
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Leaving a bathing suit in the trunk of a hot car or hanging it in direct sunlight is also a no-no because high temperatures and ultraviolet rays can fade and break down the fibers. Mary Marlowe Leverette, Southern Living, 12 June 2026 Items Stored on Top of Kitchen Cabinets Storing things on top of kitchen cabinets is another feng shui no-no, according to Roynon. Maria Sabella, Better Homes & Gardens, 8 June 2026 There are some obvious no-no’s that fall within this rule, like standard-size water bottles and full-size tubes of toothpaste. Elliott Harrell, Travel + Leisure, 8 June 2026 Overly bright, white lighting is a big design no-no. Cori Sears, The Spruce, 1 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

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Cite this Entry

“No-no.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/no-no. Accessed 17 Jun. 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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