unacceptable

/ʌnɐksˈɛptəbə‍l/

/ˌənækˈsɛptəbəɫ/

unacceptable

(of a thing) not pleasing or satisfying enough

wrong or not allowed in a particular situation

synonyms : impossible

Examples

1. Harassment or bullying is unacceptable behavior in the workplace.

2. Not following safety guidelines is unacceptable in hazardous environments.

3. The quality of the product was unacceptable, and the customer returned it.

4. Discrimination based on race or religion is morally unacceptable and considered bad.