blue-sky 
(also blue-skies)
adjective [attributive] informal
Creative or visionary and unconstrained by practicalities: blue-sky thinking...
- Moving toward network-centric warfare and leveraging technologies to this end requires investment in blue-sky research and cutting-edge innovation, much of which does not yield the military results expected.
- Equally, the market doesn't always know what it needs and blue-sky research will continue to produce many of the most successful technologies from a commercial viewpoint.
- The startups being acquired now have real technology to offer - and buyers have real needs, not just blue-sky visions.
- mind-sight
- mind-stuff
- mindstyle
- mind the shop
- mind-transference
- mind-trip
- mind-tripping
- mind virus
- mindware
- mind-warp
- mind-warping
- mind-your-own-business
- mine
- mineable
- Minean
- mine-boy
- mine canary
- mine captain
- mine car
- mine clearance
- mine-clearing
- mine countermeasures
- mine dance
- mine detector
- mined-out