Blue-sky and Rad

Blue-sky adjective - Without immediate commercial value.

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

Rad noun - A unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material.

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