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Showing results for unacceptable. Search instead for unacceptabil.
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.

She called the treatment of her son "disgraceful and unacceptable".

From BBC • Apr. 9, 2026

Turkey said both sides now had to stick to the agreement, while Spain said it was "unacceptable" for Israel to maintain its attacks in Lebanon.

From Barron's • Apr. 8, 2026

But Tehran on Friday rejected mediated efforts to negotiate an end to the war, saying U.S. demands are unacceptable.

From The Wall Street Journal • Apr. 5, 2026

"There was completely unacceptable behaviour from a proportion of fans both before and after the match, at what should have been an enjoyable and safe event for all attending," she said, in a statement.

From BBC • Apr. 4, 2026

Unfortunately, as Zambardino noted, “the errors multiply each other and can escalate rapidly to an unacceptable magnitude.”

From "1491" by Charles C. Mann