Antonym for cauterize?

Cauterize does not really have a precise antonym, however, since it is a process that involves burning, an approximate antonym would be freeze.

The opposite (antonym) of antonym is synonym. An antonym is a word that means the opposite. A synonym is a word that means the same thing, or nearly the same thing, for a given context.

quetion(s)

Some words do not have direct opposites [antonyms]. Antonyms do not usually substitute for phrases. The phrase "you are" has no antonym. A contrasting version of "you are" is "you are not".

he won't