abusive

Short definition from Wiktionary

Adjective

1. 1
   Prone to treat someone badly by coarse, insulting words or other maltreatment; vituperative; reproachful; scurrilous.
2. 2
   Tending to deceive; fraudulent.
3. 3
   Tending to misuse; practising or containing abuse.
4. 4
   Being physically or emotionally injurious; characterized by repeated violence or other abuse.
5. 5
   Wrongly used; perverted; misapplied; unjust; illegal.
6. 6
   Catachrestic.