unacceptable
adjectiveUK /ˌʌnəkˈseptəbl/
US /ˌʌnəkˈseptəbl/
Too bad to be allowed or okay.
The teacher said that hitting is unacceptable.
RELATED WORDS
OTHER MEANINGS
2. Not good enough for someone to agree to.
The offer was unacceptable to the workers.
3. Very unpleasant or hard to deal with.
The heat was unacceptable for a long walk.
4. Not meeting a standard or rule.
His behavior at the party was unacceptable.