unobtainable

/ˌʌnəbˈteɪnəbəl/
adjective
  1. Impossible to get, achieve, or reach.
    • The remote island was unobtainable by boat during the storm.
    • The dream of a perfect life is often unobtainable, but we can still be happy.
    • For many collectors, that rare coin is unobtainable due to its high price.
What does "unobtainable" mean? | whatsthatwordmean | whatsthatwordmean