unacceptable

adjective

un·​ac·​cept·​able ˌən-ik-ˈsep-tə-bəl How to pronounce unacceptable (audio)
-ak-
: not acceptable : not pleasing or welcome
unacceptability noun
unacceptably adverb

Examples of unacceptable in a Sentence

a word that is unacceptable in formal English Some of her ideas were unacceptable to other people.
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.
Just totally unacceptable and mind-blowing for that kind of mistake. Reader Commentary, Baltimore Sun, 13 Aug. 2025 The critiques have only intensified with each year that passes since the team’s last Super Bowl victory in 1996, with Jones calling the drought unacceptable at the NFL owners meeting earlier this year. Lawrence Dow, Fort Worth Star-Telegram, 13 Aug. 2025 In an interview, Pryor said the deputy's actions were unacceptable given the subject's age, regardless of how the series of events truly unfolded. Killian Baarlaer, The Courier-Journal, 13 Aug. 2025 This creates unacceptable operational exposure and enterprise risk. Kevin Bocek, Forbes.com, 11 Aug. 2025 See All Example Sentences for unacceptable

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of unacceptable was in the 15th century

Browse Nearby Words

Cite this Entry

“Unacceptable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unacceptable. Accessed 24 Aug. 2025.

Kids Definition

unacceptable

adjective
un·​ac·​cept·​able ˌən-ik-ˈsep-tə-bəl How to pronounce unacceptable (audio)
-ak-
: not acceptable : not pleasing or welcome
unacceptably adverb

More from Merriam-Webster on unacceptable

Last Updated: - Updated example sentences
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