blue-sky

[ bloo-skahy ]

adjective

1. fanciful; impractical:

   blue-sky ideas.

2. (especially of securities) having dubious value; not financially sound:

   a blue-sky stock.

blue-sky

noun

1. modifier of or denoting theoretical research without regard to any future application of its result

   a blue-sky project

verb

1. to theorize (about something that may not lead to any practical application)

Word History and Origins

Origin of blue-sky¹

First recorded in 1890–95

Example Sentences

Indeed, it may be some blue-sky thinking from a player, no matter how brilliant, who has not won a trophy in his career for club or country.

From BBC

When they hit together on the Redondo Union High courts one blue-sky afternoon last month, Giron was ranked 45th in the world, hot off his first ATP title in Newport, R.I., in the summer.

From Los Angeles Times

We’ve had some lovely blue-sky days in late July with temperatures in the low 80s, but Thursday, the clouds were back for a good part of the day.

From Los Angeles Times

When mentioning blue-sky concepts last year year at an investor event in Florida, D’Amaro teased “Coco” as a key film that has yet to be properly explored in the Disney parks.

From Los Angeles Times

Then it was time to blue-sky the eighth episode.

From New York Times

Related Words

• absurd
• bizarre
• extravagant
• fantastic
• fantastical
• fictional
• imaginative
• offbeat
• preposterous
• unreal
• whimsical