The antonyms for "discourses" is a tricky one because it is not simply a matter of finding words that mean the opposite. "Discourses" can refer to a variety of spoken or written communications that involve an exchange of ideas or information. Therefore, its antonyms will depend on the context and the specific meaning of the word. However, some possible antonyms could be silence, quietness, or reticence, depending on the situation. These words convey the opposite of "discourses" because they suggest the lack of communication or the absence of a conversation.