Adjective: blue-sky 'bloo,skI
- (of research or ideas) theoretical or speculative without immediate practical application
"the company cannot afford to do blue-sky research"
- The sky as viewed during daylight
"he shot an arrow into the blue sky";
- blue, blue air, wild blue yonder
Derived forms: blue skies
See also: noncommercial
Type of: sky
Encyclopedia: Blue-sky
Blue sky