avant-garde (adjective) avant-garde: unconventional, forward-looking
Sinonime: Catch-22, Hobson's choice, between Scylla and Charybdis, between a rock and a hard place, between the hammer and the anvil, between two fires, cornered, in a dilemma, in a pickle, in a predicament, in the middle, no choice, sitting on a powder keg
Antonime: conservative,
conventional