Blue-sky
Blue-sky adjective - Without immediate commercial value.
Unobtainable and blue-sky are semantically related. In some cases you can use "Unobtainable" instead an adjective phrase "Blue-sky".
Unobtainable
Unobtainable adjective - Hard or impossible to get to or get at.
Blue-sky and unobtainable are semantically related. Sometimes you can use "Blue-sky" instead an adjective "Unobtainable".
Mutual synonyms
Cite this Source
Unobtainable and Blue-sky. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/blue-sky/unobtainable
Blue-sky & Unobtainable. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/blue-sky/unobtainable>.
Unobtainable or Blue-sky. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/blue-sky/unobtainable.