The beauty of the blue-sky day ignored what had occurred 24 hours before.
The blue-sky during all these centuries has tinged the shadows outdoors a bluish color.
Turn a perfectly sound, entrenched business into a blue-sky factory?
Snubbed for the first time in all her blue-sky life–and by a boy, too!
There are some business men who look upon psychology as "blue-sky" theorizing or "new thought."
The bluest skies of a blue-sky land curved in fathomless majesty over the yellow valley of the Santa Fé.
Having no sound factual or value basis; recklessly imaginative: a budget figure, as it turned out, and a blue-sky one at that
[1900+ Finance; perhaps fr the purveyor's fanciful description being as appealing and unclouded as the wide blue sky]