abusive

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Characterized by improper or wrongful use.
• adjective Using or containing insulting or hurtful language.
• adjective Causing physical injury to another.
• adjective Relating to or practicing sexual abuse.

from The Century Dictionary.

• Practising abuse; using harsh words or ill treatment: as, an abusive author; an abusive fellow. Characterized by or containing abuse; marked by contumely or ill use; harsh; ill-natured; injurious.
• Marked by or full of abuses; corrupt: as, an abusive exercise of power.
• Misleading, or tending to mislead; employed by misuse; improper.
• Synonyms and Insolent, insultiug, offensive, scurrilous, ribald, reproachful, opprobrious, reviling.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Wrongly used; perverted; misapplied.
• adjective Archaic Given to misusing; also, full of abuses.
• adjective Practicing abuse; prone to ill treat by coarse, insulting words or by other ill usage
• adjective Containing abuse, or serving as the instrument of abuse; vituperative; reproachful; scurrilous.
• adjective obsolete Tending to deceive; fraudulent; cheating.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Being physically injurious; characterized by repeated violence.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective expressing offensive reproach
• adjective characterized by physical or psychological maltreatment