Opposite is negative and a reflection of a particular thing.

For instance;
if x = 1, then -x = -1.
OR
if -x = 1, then x = -1.

Bad in other hand is the opposite of good and vice versa.
when you change the worst person, he will become the best person.

In fact, opposite is the opposite of the opposite. In other words, it is opposite to infinity.

What is your own definition?

ur algebra sucks

the meaning of opposite is etisoppo