1. Unrealistic and impractical: “[The author] shows what is testable physics, what is philosphy's domain, and what is blue-sky nonsense” (Ann Finkbeiner, quoted in New York Times Book Review by Laurel Graeber October 13, 1996). 2. Having a cloudless sky; clear: a blue-sky day.
INTRANSITIVE VERB:
Inflected forms: blue-·skied, blue-·sky·ing, blue-·skies To hold or express unrealistic or impractical views, especially in estimating something. Often used with it.
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