The term "raised subject" refers to a topic, issue or question that has been brought up for discussion or consideration. Its antonym, therefore, would be a topic or issue that has not been raised, addressed or discussed. This could include issues that are ignored, overlooked or avoided for various reasons, such as lack of relevance, importance or interest. Another antonym could be a topic or issue that has been resolved or settled, and is no longer a subject of discussion or debate. In contrast, a raised subject could be an issue that is contentious, controversial or sensitive, and requires careful consideration and discussion to reach a resolution.