Avant-garde and Blue-sky

Avant-garde adjective - Being or employing the latest concepts, styles, or techniques.

Blue-sky and avant-garde are semantically related In some cases you can use "Blue-sky" instead an adjective phrase "Avant-garde".

Blue-sky adjective - Without immediate commercial value.

Avant-garde and blue-sky are semantically related in creative topic. Sometimes you can use "Avant-garde" instead an adjective phrase "Blue-sky".