There are several synonyms that can be used in place of the phrase "filthy rich". These include "loaded", "wealthy", "affluent", "well-to-do", "prosperous", and "moneyed". "Loaded" is an informal term that describes someone who has a lot of money and often implies that they have become wealthy through questionable means. "Wealthy" and "affluent" are more neutral terms that simply describe individuals who have a great deal of wealth. "Well-to-do" refers to those who are comfortably wealthy but may not have the extreme wealth of a "filthy rich" individual. "Prosperous" and "moneyed" also describe individuals who have a considerable amount of wealth and financial security.