abusive
adjective
uk/əˈbjuːsɪv/ ususing rude and offensive words:
She was sacked for sending an abusive email to a colleague.
abusive calls/comments/language
involving bad or wrong use of something or treatment of someone, especially for your own advantage:
The former chairman was found guilty of abusive practices and banned from buying or selling shares.
Workers complained of abusive conditions, where they were forced to work 18 hours a day.