The Meaning of Opposite

Opposite is a loaded term. The meaning of it grows more ambiguous as the dimensions of the object to which it refers grow. 

A no-dimensional object (a point) has no opposite aside from absence (not a point). A one-dimensional object (the line A—B) has its pure reversal (B—A) as its opposite. 

Consider a higher order "object" such as driving in America. What is the opposite? It could be said that driving in England is the opposite of driving in America since Americans drive on the right while the English drive on the left. This would be true in the limited sense from the perspective of the perpendicular plane relative to the driver’s general direction, forward, through time—also forward. 

But one could also say that driving sideways is the opposite of driving as we know it. How about rather than driving through scenery that the car passes through that the car stands still and the scenery moves passing by the car was the opposite? Still another could be driving whereby you leave from your destination and arrive at your departure point. There certainly are more.

What is the point of this thought process? It is a hint at how difficult and convoluted and simply fraught any attempt to draw sharp distinctions can be. This is especially true in the realms of human action. Counterfactuals are not only challenging to find. They are nearly impossible to properly define.