1. impossible to get, acquire, or achieve

Examples

• The rare book was unobtainable at any price.
• Perfect happiness may be unobtainable for most people.
• The concert tickets became unobtainable within minutes of going on sale.
• His dream of becoming a professional athlete seemed unobtainable after the injury.
• The medicine was unobtainable in remote areas.
• She realized that his approval was unobtainable no matter what she did.