To is the opposite of from.
The opposite (antonym) of opposite is same.
opposite of opposite to opposite from
If you have to be opposite on opposite day, that makes it a day, and then there was no opposite day. But that can't be true since you HAVE to be opposite, which means that you have to be normal even though there is an opposite day because you are supposed to be opposite on opposite day, which means that you act normal as if it was a normal day, because that is the opposite of opposite day. (This is a classic "liar's paradox". Since there is already an opposite day, you should have a normal day because that is the opposite of an opposite day. But then it is not an opposite day.)
You could say that you are being "opposite of how other people are" on Opposite Day. If you say the opposite of an opposite, it is a true expression.
The opposite of day is night and the opposite of night is day, so the answer is day.
The opposite of up is down. So, opposite of the opposite of up is up itself.
The opposite of the opposite is the original value, -9.
The opposite of out is "in."(For a fire, the opposite of out is "lit" . For a light, the opposite of out, meaning off, is "on.")
There is no opposite word for the word opposite, at this time.
Inexact. The opposite of an opposite is a double negative, which is the term itself.
The opposite of 'hi' would be 'bye'.