unacceptable
not satisfactory or adequateThe quality of the product was unacceptable.
The product did not meet the required standards.
Not satisfactory or adequate; failing to meet standards or expectations.
His behavior was unacceptable in a professional setting.
His actions were inappropriate and not acceptable in the workplace.
The restaurant's hygiene standards were unacceptable.
The cleanliness of the restaurant did not meet acceptable levels.
Often used to express strong disapproval or dissatisfaction with something.
Collocations
Pro Tip
Usage Tip
Use 'unacceptable' to emphasize that something is not good enough or appropriate.
Word Origin
From Middle English 'unacceptable', from 'un-' (not) + 'acceptable' (able to be accepted).
Usage Notes
The word is often used to express strong disapproval or to indicate that something does not meet required standards.