Definition of blue–sky
1 : having little or no value blue–sky stock
2 : not grounded in the realities of the present : visionary blue–sky thinking
Indulge Your Inner Word Nerd
1903
First Known Use of blue–sky
1903
Law Dictionary
blue–sky
adjective
Legal Definition of blue–sky
1 : having little or no value blue–sky stock
2 : of or relating to blue-sky laws
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