Culturally advanced is a term used to describe societies or individuals that have achieved a high level of development in terms of their culture, art, and technology. The term can be broken down into two parts: culturally, which refers to the beliefs, values, and customs of a particular group; and advanced, which implies a high level of sophistication. The crossword solution for this term is 'avant, ' which is a French word meaning 'AHEAD' or 'FORWARD.' This term is often used to refer to those who are AHEAD of their time in terms of their ideas and innovations.