UNACCEPTABLE Synonyms: 177 Similar and Opposite Words

unacceptable

adjective

ˌən-ik-ˈsep-tə-bəl

Definition of unacceptable

as in wrong

falling short of a standard this work is entirely unacceptable

Synonyms & Similar Words

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Example Sentences

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.

Recent Examples of unacceptable The treatment of women in these shirts has been unacceptable and targeted. — Jon Root Outkick, FOXNews.com, 18 Oct. 2026 The idea of not spending evenings with my kid is, kids are, is completely unacceptable. — Michael Birnbaum The Washington Post, Arkansas Online, 14 Oct. 2026 OpenAI took months to discover the incident and notify the Australian agencies affected — that’s unacceptable by my standard. — Rumman Chowdhury, Vogue, 13 Oct. 2026 But some experts say the evidence is sufficient to conclude Vykat is causing unacceptable harm. — Ed Silverman, STAT, 13 Oct. 2026 See All Example Sentences for unacceptable

Recent Examples of Synonyms for unacceptable

Adjective

Without it, the language model is a very expensive way to write faster emails to the wrong people.

— Stephen Messer, Fortune, 23 Oct. 2026
Those chats tended to include what was going right or wrong or could be better.

— Kansas City Star, Kansas City Star, 22 Oct. 2026

Definition of wrong

Adjective

Disease that has spread to those organs is associated with poorer treatment outcomes.

— Annika Kim Constantino, CNBC, 24 Oct. 2026
They were frustrated with teacher shortages and poor conditions at schools, including overcrowded classrooms and dilapidated buildings.

— James Cirrone , Brittany Miller, FOXNews.com, 24 Oct. 2026

Definition of poor

Adjective

Poetry gets left behind by the exigency of character development or, in the movie’s self-defeating logic, because the art form doesn’t really matter and is only a lame excuse for people who won’t take responsibility and grow up.

— Literary Hub, Literary Hub, 16 Oct. 2026
Blumenthal hopes to see action on KOSA in the lame-duck session.

— Lisa Hagen, Hartford Courant, 2 Oct. 2026

Definition of lame

Adjective

In most versions of the Greek mythology, Medusa is a beautiful woman that was cursed by the goddess Athena with a head of snakes instead of hair and the horrible ability to turn people to stone with just one look.

— Lynsey Eidell, Glamour, 26 Oct. 2026
The battle is between that horrible atmosphere and some of the horrific candidates that have been nominated by the Democratic Party.

— ABC News, ABC News, 25 Oct. 2026

Definition of horrible

Adjective

His teams are terrible just before halftime, having been outscored 107-6 in the coach's 24 games.

— Armando Salguero OutKick, FOXNews.com, 26 Oct. 2026
If the purpose of buying a suit were merely obtaining clothing, three fittings would be terrible service.

— Anna van Praagh, Robb Report, 25 Oct. 2026

Definition of terrible

Adjective

Nearly one-third of adults in the United States may be iron deficient, according to a 2024 study.

— Amanda Schupak, CNN Money, 23 Oct. 2026
The county attorney's office said the case was submitted to prosecutors in June 2024, but the case file was deficient and did not support charges.

— Stephen Swanson, CBS News, 22 Oct. 2026

Definition of deficient

Adjective

Mahomes scrambled to his left and threw an awful interception in the opening half.

— Sam McDowell October 25, Kansas City Star, 26 Oct. 2026
Their wins this year have been against a Patriots team that looked awful in Week 1 – with Drew Lock coming in for Darnold early in the game.

— David Troy OutKick, FOXNews.com, 25 Oct. 2026

Definition of awful

Browse Nearby Words

unacceptability

unacceptable

unacceptably

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“Unacceptable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unacceptable. Accessed 29 Oct. 2026.

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Synonyms of unacceptable

adjective

Example Sentences

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