Definitions of contrary:

• noun:   two propositions are contraries if both cannot be true but both can be false
• noun:   exact opposition

  Example: "Public opinion to the contrary he is not guilty"

• noun:   a relation of direct opposition
• adjective:   resistant to guidance or discipline

  Example: "Mary Mary quite contrary"

• adjective:   very opposed in nature or character or purpose

  Example: "Acts contrary to our code of ethics"

• adjective:   of words or propositions so related that both cannot be true but both may be false

  Example: "`hot' and `cold' are contrary terms"

• adjective:   in an opposing direction

  Example: "A contrary wind"