There are several synonyms for "of the theater" that can be used depending on the context. Some commonly used alternatives include "theatrical", "dramatic", "theater-related", "stage-related", or "performative". These terms are often used to describe aspects of the theater such as productions, performances, actors, or even the atmosphere of a theater. Using different synonyms can help to add variety and interest to your writing, and also give a more nuanced and specific meaning to the words you choose. So, whether you are writing a review of a play or a theatrical essay, there are many ways to describe the "of the theater" experience.