unobtainable
unob·tai·nable
adjective
1.
not capable of being obtained
- “a rare work, today almost inaccessible”
- “timber is virtually unobtainable in the islands”
- “untouchable resources buried deep within the earth”
Origin
From un- + obtainable.
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.