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blue-sky

[ bloo-skahy ]
/ ˈbluˈskaɪ /
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adjective
fanciful; impractical: blue-sky ideas.
(especially of securities) having dubious value; not financially sound: a blue-sky stock.
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The rainy weather could not ________ my elated spirits on my graduation day.
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Origin of blue-sky

First recorded in 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use blue-sky in a sentence

British Dictionary definitions for blue-sky

blue-sky

blue-skies


noun
(modifier) of or denoting theoretical research without regard to any future application of its resulta blue-sky project
verb -skies, -skying or -skied
to theorize (about something that may not lead to any practical application)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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