indiscoverable

/ˌɪndɪˈskʌvərəbəl/
adjective
  1. Impossible to find or discover; not able to be located or learned.
    • In the dense fog, the path became indiscoverable even to experienced hikers.
    • The treasure remained indiscoverable despite years of searching.
    • The truth behind the ancient legend seemed indiscoverable to historians.
Antonyms
What does "indiscoverable" mean? | whatsthatwordmean | whatsthatwordmean