* "Monetary" is the most common and formal adjective related to money, often used in economic or financial contexts. Example: "Monetary policy"
* "Pecuniary" is a less common but more formal adjective meaning "relating to money." Example: "Pecuniary interests"
* "Financial" is a broad adjective related to finances, including money, but not solely focused on it. Example: "Financial stability"
You can also use other words to describe something related to money depending on the context:
* "Cash" - specifically referring to physical currency. Example: "Cash transactions"
* "Wealthy" - describes someone with a lot of money. Example: "A wealthy investor"
The best adjective to use depends on the specific meaning you want to convey.