The term "multiversal" refers to the existence of multiple universes or parallel realities. There are several synonyms for this word, including "multiverse," "many-worlds," "parallel universes," and "alternate realities." These terms are often used in science fiction and quantum physics to describe hypothetical scenarios that involve the coexistence of various universes. In popular culture, the concept of a multiverse has been used to explain complex plotlines and the existence of multiple versions of characters or events. Overall, these synonyms highlight the fascinating and thought-provoking nature of exploring the possibilities of multiple universes and alternate realities.