un·​ac·​cept·​able | \ ˌən-ik-ˈsep-tə-bəl How to pronounce unacceptable (audio) , -ak-\

Definition of unacceptable

: not acceptable : not pleasing or welcome

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Other Words from unacceptable

unacceptability \ ˌən-​ik-​ˌsep-​tə-​ˈbi-​lə-​tē How to pronounce unacceptability (audio) \ noun
unacceptably \ ˌən-​ik-​ˈsep-​tə-​blē How to pronounce unacceptably (audio) \ 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

For San Francisco officials and others, that’s unacceptable. Sara Harrison, WIRED, "San Francisco's E-Cigarette Ban Aims to Goose the FDA," 21 June 2019 This government is trying to take away the woman’s right to choose and that’s unacceptable. Erica Gonzales, Harper's BAZAAR, "Billy Porter's Fierce Tonys Look Made a Statement About Reproductive Rights," 10 June 2019 Gladden said the the behavior of the manager, a woman of color, was unacceptable. Janelle Griffith, NBC News, "Popeyes manager allegedly called black customer N-word after dispute over cup of water," 12 Sep. 2019 The main thing, surely, is the conclusion: that slavery is now and always will be unacceptable. The Economist, "Everywhere in chains," 27 Aug. 2019 Even for the Romans of the time, who were accustomed to interminable political upheaval, this episode marked an unacceptable low. National Geographic, "In 897, the corpse of a pope was exhumed—to be put on trial.," 20 Aug. 2019 Pandering to a climate that accuses Portland of being soft on antifa is unacceptable. oregonlive.com, "Portland mayor gathers civic leaders in continued push against protest violence," 14 Aug. 2019 Finishing with four touchdowns at Njoku’s size is unacceptable. Shawn Childs, SI.com, "Fantasy Football: Busts to Avoid in 2019," 8 Aug. 2019 Silviu Sirbu, Voxility CEO 8chan's content is hate speech and is unacceptable according to our Acceptable Use Policy. Jim Salter, Ars Technica, "8chan resurfaces, along with The Daily Stormer and another Nazi site," 7 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unacceptable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of unacceptable

15th century, in the meaning defined above

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Statistics for unacceptable

Last Updated

14 Oct 2019

Look-up Popularity

Time Traveler for unacceptable

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

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More Definitions for unacceptable



English Language Learners Definition of unacceptable

: not pleasing or welcome : not acceptable


un·​ac·​cept·​able | \ ˌən-ik-ˈsep-tə-bəl How to pronounce unacceptable (audio) , -ak-\

Kids Definition of unacceptable

: not pleasing or welcome : not acceptable unacceptable behavior

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Comments on unacceptable

What made you want to look up unacceptable? Please tell us where you read or heard it (including the quote, if possible).


transposition of initial sounds of words

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