avant-garde:1

noun
avant-garde \ ˌä-ˌvän(t)-ˈgärd \ ˌa- \ ə-ˈvänt-ˌgärd \ ˌa-ˌvōⁿ-ˈgärd \ ˌa-ˌvȯn(t)-ˈgärd \
1849
  • an intelligentsia that develops new or experimental concepts especially in the arts

avant-garde:2

adjective
avant-garde \
1925
  • of or relating to an avant-garde
Powered by Merriam-Webster
images meanings .com