unacceptable
/ˌʌnəkˈsɛptəbəl/
adjective
- Not good enough or not allowed according to a standard or rule.
- His behavior at the meeting was completely unacceptable.
- The quality of the work was unacceptable, so they had to redo it.
- It is unacceptable to park in a handicapped spot without a permit.
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