There are several synonyms that can be used for the phrase "not over". Some of these include unfinished, incomplete, ongoing, continuing, in progress, still happening, unresolved, and pending. These synonyms can be used interchangeably depending on the context of the sentence. For instance, if you are talking about a project that is still in progress, you may say that it is not over yet, or that it is unfinished. Similarly, if you are waiting for an outcome or decision, you can say that it is pending or unresolved. Understanding the synonyms can help you express yourself better and avoid repetition in your language.