blue-sky

[ bloo-skahy ]
See synonyms for blue-sky on Thesaurus.com
adjective
  1. fanciful; impractical: blue-sky ideas.

  2. (especially of securities) having dubious value; not financially sound: a blue-sky stock.

Origin of blue-sky

1
First recorded in 1890–95

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use blue-sky in a sentence

  • If it should ever be my lot to take the Long Trail at short notice, I hope it will be under a blue sky and a blazing sun.

    Raw Gold | Bertrand W. Sinclair
  • David thought the farmer a fool, and rode on, admiring the blue sky uncheckered by a single cloud.

  • Above was a deep-blue sky with those thick low masses of snow-white clouds one sees only in Bavaria.

    Ancestors | Gertrude Atherton
  • A light breeze fanned his face, and all around him he could see mountain peaks pushing upward into the clear blue sky.

    Motor Matt's "Century" Run | Stanley R. Matthews
  • But all around these star-clouds, or Nebulae as they are called, the clear blue sky is discovered by the naked eye.

    Gospel Philosophy | J. H. Ward

British Dictionary definitions for blue-sky

blue-sky

noun
  1. (modifier) of or denoting theoretical research without regard to any future application of its result: a blue-sky project

verb-skies, -skying or -skied
  1. 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