Blue-sky and High-flown

Blue-sky adjective - Without immediate commercial value.

High-flown and blue-sky are semantically related. in creative topic. In some cases you can use "High-flown" instead an adjective phrase "Blue-sky".

High-flown adjective - Full of fine words and fancy expressions.

Blue-sky and high-flown are semantically related. Sometimes you can use "Blue-sky" instead an adjective phrase "High-flown".