The phrase "elephant in the room" is often used to describe a situation or topic that is obvious but no one wants to address. However, there are several other synonyms for this phrase that can be used to convey the same message. For example, the term "taboo subject" can be used to describe a topic that is off-limits or too sensitive to talk about. "Skeleton in the closet" is another phrase that can be used to describe a hidden issue that no one wants to reveal. Additionally, the phrase "unspoken truth" can be used to describe something that is widely known, but left unsaid. Whatever term is chosen, the underlying message remains the same: there is a topic that needs to be addressed.