The word "unobtainable" means something that cannot be acquired or attained. It suggests that an object, goal, or desire is impossible to obtain or difficult to achieve. Full definition
Oh, and I'd sell it in proper numbers so that it doesn't immediately become completely unobtainable for anyone other than millionaire playboys / collectors. (evo.co.uk)
Even though home privacy seems unobtainable in city or suburb living, the proximity of neighboring homes is a big factor for some homebuyers. (blog.compmort.com)
The ladies of Mumbai Call girls Service may seem unobtainable when men see them on the street, but for you, these ladies are hot and ready to go right now. (mumbaiescortsclub.in)