What was meant by nouveaux riches?

"Nouveaux riches" is a French term meaning "new rich," referring to individuals or families who have recently acquired wealth, particularly those who lack the social status or cultural refinement traditionally associated with old money. The term often carries a connotation of ostentatiousness or a lack of sophistication, suggesting that the newly wealthy may display their wealth in ways that are perceived as vulgar or inauthentic. It highlights the social divide between established aristocracy and those who have gained wealth through recent means, such as business or entrepreneurship.