The term 'more avant-garde' can be described as EDGIER, which is a six letter word. Avant-garde is a French term meaning 'advance guard' and is used to describe innovative or experimental ideas in the arts, culture, and society. It is often associated with modernism and is typically seen as being ahead of its time. The term 'more avant-garde' implies that something is even more progressive and daring than what is already considered avant-garde.