1. the advance group in any field, especially in the visual, literary, or musical arts, whose works are characterized chiefly by unorthodox and experimental methods.
2. of or relating to the experimental treatment of artistic, musical, or literary material.
3. belonging to the avant-garde: an avant-garde composer.
4. unorthodox or daring; radical.
"movements can be avant-garde."
"artists can be avant-garde."
"arts can be avant-garde."
"parties can be avant-garde."
"works can be avant-garde."
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