Blue-sky and Kooky

Blue-sky adjective - Without immediate commercial value.

Kooky and blue-sky are semantically related. In some cases you can use "Kooky" instead an adjective phrase "Blue-sky".

Kooky adjective - Different from the ordinary in a way that causes curiosity or suspicion.

Blue-sky and kooky are semantically related. Sometimes you can use "Blue-sky" instead an adjective "Kooky".