The antonyms for the phrase "went to room" are endless, as the phrase lacks a specific context. However, some possible opposite actions could be "left the room," "avoided the room," "skipped the room," or "ignored the room." Depending on the situation, different words could convey opposing meanings. For instance, if someone was avoiding a room, someone else could be seeking it out. Similarly, if someone was leaving a room, someone else might be entering it or staying in it. Ultimately, identifying the antonym for "went to room" requires a clear understanding of the situation and what the opposite of that action would be.