unacceptable
adjective
un·ac·cept·able
ˌən-ik-ˈsep-tə-bəl 
-ak-
: not acceptable : not pleasing or welcome
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
In just 24 hours, the president unveiled three massive state interventions into different markets that might’ve once looked—and sounded—like unacceptable levels of socialist dirigisme for a Republican to champion.
—
Eva Roytburg, Fortune, 8 Jan. 2026
The next time new science reveals that a chemical is much more toxic, or that the amount of pollution released from a factory had been underestimated and would cause legally unacceptable health risks, the agency would not be able to react.
—Lisa Song, ProPublica, 7 Jan. 2026
That's completely and totally unacceptable.
—NBC news, 4 Jan. 2026
Chalky or greasy creams were unacceptable.
—Kiana Murden, Vogue, 4 Jan. 2026
See All Example Sentences for unacceptable
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Eva Roytburg, Fortune, 8 Jan. 2026
The next time new science reveals that a chemical is much more toxic, or that the amount of pollution released from a factory had been underestimated and would cause legally unacceptable health risks, the agency would not be able to react.
—Lisa Song, ProPublica, 7 Jan. 2026
That's completely and totally unacceptable.
—NBC news, 4 Jan. 2026
Chalky or greasy creams were unacceptable.
—Kiana Murden, Vogue, 4 Jan. 2026
See All Example Sentences for unacceptable
Cite this Entry
“Unacceptable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unacceptable. Accessed 15 Jan. 2026.
Copy CitationKids Definition
unacceptable
adjective
un·ac·cept·able
ˌən-ik-ˈsep-tə-bəl
-ak-
: not acceptable : not pleasing or welcome
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