very modern or experimental ideas and methods
avant-garde - daring
Something ‘avant-garde' is considered to be radically new or original to the extent that it might seem strange or shocking. The word implies innovation, daring, and the application of cutting-edge concepts or techniques within a particular field, typically art, music, fashion, and literature. The people who develop such things can be referred to as ‘the avant-garde’.
Our theatre company champions the avant-garde over more conventional, staid productions.
When the writer was a younger man, he spent a few years in Paris working with and learning from the avant-garde.
I’m not a big fan of that modern artist. Her paintings are too avant-garde for my tastes.