avant-garde

Noun

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
- Less specific
  - artistic movement
  - art movement

Adjective

radically new or original; “an avant-garde theater piece”
- Synonyms
  - daring
- Similar to
  - original