The term "are unoccupied" refers to something that is not being used or inhabited. Antonyms for this term could include "are occupied," "are engaged," "are utilized," "are employed," "are taken," "are filled," or "are inhabited." These are all words that suggest the opposite of being unoccupied, indicating that something or someone is actively using or living in a space. It is important to recognize the antonyms for "are unoccupied" in order to better understand the different ways that a space can be used or occupied, and to be able to communicate clearly and effectively about these concepts.