avant-garde
1. [ adjective ] (theater) radically new or original
Synonyms: daring
Examples:

"an avant-garde theater piece"

Related terms: original
2. [ noun ] (fine art) any creative group active in the innovation and application of new concepts and techniques in a given field (especially in the arts)
Synonyms: vanguard van new_wave avant_garde
Related terms: artistic_movement
Similar spelling:   avant_garde