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Definitions

unacceptable

ADJECTIVE
not suitable or satisfactory
Synonyms
STRONGEST
distasteful improper inadmissible objectionable offensive repugnant undesirable unsatisfactory
WEAK
below par damaged disagreeable displeasing exceptionable half-baked ill-favored insupportable lousy not up to snuff obnoxious reject unappealing uninviting unpleasant unwanted unwelcome won't do
Antonyms
STRONGEST
acceptable agreeable appropriate good nice pleasant pleasing
WEAK
OK desirable satisfactory suitable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He said his his team's performance in the defeat by Brighton was both "indefensible" and "unacceptable".

From BBC • Apr. 22, 2026

Head of the National Business Crime Centre, Superintendent Lisa Maslen said fuel theft "continues to place a significant and unacceptable strain on fuel retailers, impacting businesses financially and placing additional demand on policing resources".

From BBC • Apr. 20, 2026

Education Secretary Bridget Phillipson said "freedom of speech is the foundation of every university's success" but there had been too many cases contributing to "an unacceptable culture of fear and stifling the pursuit of knowledge".

From BBC • Apr. 19, 2026

“He was incredibly brave to come forward and to be a plaintiff ... To be targeted because he is pursuing his rights is unacceptable, but not surprising given what we’ve been seeing.”

From Los Angeles Times • Apr. 17, 2026

The thought of leaving the children alone while the search party was still at large had been simply unacceptable to her.

From "The Incorrigible Children of Ashton Place: Book I: The Mysterious Howling" by Maryrose Wood

Vocabulary lists containing unacceptable

We're not asking, we're demanding: Vocabulary from "Selma," the movie

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