When it comes to finding synonyms for the phrase "is extravagant," there are many options to choose from. Some common synonyms include "is excessive," "is lavish," and "is over-the-top." Other possible choices might include "is flamboyant," "is flamboyant," "is opulent," or "is ostentatious." Depending on the context in which the phrase is being used, different synonyms may be more appropriate than others. For example, "is extravagant" might be a good choice for describing someone's spending habits, while "is flamboyant" might be a better fit for describing someone's personality or fashion sense. Regardless of which synonym you choose, it's important to use the word in a way that accurately reflects the intended meaning.