The antonyms for the word "re courses" can be varied depending on the context in which the term is used. If we consider "re courses" as a verb meaning to return to a previous action, then the antonyms could be words like refrain, desist, stop, or discontinue. However, if we take "re courses" as a noun meaning alternative options or choices, then the antonyms could be words like exclusion, limitation, or restriction. In either case, the antonyms provide a contrasting perspective and can help to clarify the meaning of the term "re courses" in a particular context.