avant-garde
Concise Oxford English Dictionary © 2008 Oxford University Press:
avant-garde /ˌavɒ̃ˈgɑːd/
▶adjective (in the arts) new and unusual or experimental. ▶noun (the avant-garde) avant-garde ideas or artists.
– derivatives
avant-gardism noun,
avant-gardist noun.
avant-gardism noun,
avant-gardist noun.
– origin ME (denoting the vanguard of an army): from Fr., lit. ‘vanguard’.
'avant-garde' also found in these Oxford entries:

