1 : in an opposing direction; "adverse currents"; "a contrary wind"
2 : very opposed in nature or character or purpose; "acts contrary to our code of ethics"; "the facts point to a contrary conclusion"
3 : expressing antithesis or opposition; "the adversative conjunction `but' in `poor but happy'"
4 : altogether different in nature or quality or significance; "the medicine's effect was opposite to that intended"; "it is said that opposite characters make a union happiest"- Charles Reade