Definitions of offensive:

• noun:   the action of attacking an enemy
• adjective:   unpleasant or disgusting especially to the senses

  Example: "Offensive odors"

• adjective:   causing anger or annoyance

  Example: "Offensive remarks"

• adjective:   for the purpose of attack rather than defense

  Example: "Offensive weapons"

• adjective:   violating or tending to violate or offend against

  Example: "Considered such depravity offensive against all laws of humanity"

• adjective:   of an offensive substitute for inoffensive terminology
• adjective:   morally offensive
• adjective:   causing or able to cause nausea