Blue-sky and Lovey-dovey

Blue-sky adjective - Without immediate commercial value.

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

Lovey-dovey adjective - Appealing to the emotions in an obvious and tiresome way.

Blue-sky and lovey-dovey are semantically related. Sometimes you can use "Blue-sky" instead an adjective phrase "Lovey-dovey".