unacceptable

word

/ˌənækˈsɛptəbəɫ/
uhn-ak-SEP-tuh-buhl
/ʌnɐksˈɛptəbəl/
uhn-ak-SEP-tuh-buhl

Definition

Something that is unacceptable cannot be accepted, allowed, or approved because it is wrong, bad, or not suitable.

Usage & Nuances

Often used in formal or serious situations to express strong disapproval. Common collocations: 'unacceptable behavior', 'unacceptable risk', 'totally unacceptable'. Stronger than 'not acceptable'.

Example Sentences

It is unacceptable to be late without a good reason.

basic

That kind of noise is unacceptable in the library.

basic

This food is cold. That’s unacceptable.

basic

His attitude yesterday was totally unacceptable.

natural

I find it unacceptable that they didn’t call to cancel.

natural

Sorry, but your offer is simply unacceptable to us.

natural