The phrase "anything goes" can be described using a wide variety of synonyms. One such synonym is "unrestricted," which suggests an absence of limitations or boundaries. Another synonym is "lawless," which implies a lack of rules or guidelines. Additionally, "unchecked" can be used to convey the idea of something being uncontrolled or unregulated. "Uninhibited" suggests something that is not hindered by conventions or social norms. "Open-ended" may be used to indicate that there are no predetermined outcomes or restrictions. Conversely, "free-for-all" suggests a chaotic or disorganized situation where rules and order have broken down. Ultimately, using synonyms allows for a more nuanced understanding of this versatile and multifaceted expression.