blue-sky
Americanadjective
-
fanciful; impractical.
blue-sky ideas.
-
(especially of securities) having dubious value; not financially sound.
a blue-sky stock.
noun
verb
Etymology
Origin of blue-sky
First recorded in 1890–95
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“Like, all I think is blue and green. I think of an aerial view of a park. And some grass and a blue sky at prime 11 a.m. sunshine.”
From Los Angeles Times • May 19, 2026
There were all these trouble zones - a bit of blue sky and a big patch of grass - and nobody could get them.
From BBC • Dec. 19, 2025
Near the top of this bleak scene, there’s a peek at the lifting mist and emerging blue sky.
From The Wall Street Journal • Dec. 11, 2025
Under a clear blue sky in the Austrian Alps, the 25-year-old, who started fifth, was able to best navigate the less-than-ideal conditions after recent snow.
From Barron's • Nov. 22, 2025
The massive hologram on the ceiling looks just like a cloudless blue sky.
From "Amari and the Night Brothers" by B.B. Alston
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.