Noah Webster's New International Dictionary of the English Language
1. (a.) Placed over against; standing or situated over against or in front; facing; -- often with to; as, a house opposite to the market.
2. (a.) Applied to the other of two things which are entirely different; other; as, the opposite sex; the opposite extreme.
3. (a.) Extremely different; inconsistent; contrary; repugnant; antagonistic.
4. (a.) Set over against each other, but separated by the whole diameter of the stem, as two leaves at the same node.
5. (a.) Placed directly in front of another part or organ, as a stamen which stands before a petal.
6. (n.) One who opposes; an opponent; an antagonist.
7. (n.) That which is opposed or contrary; as, sweetness and its opposite.