undiscoverable
91sealed book — noun : something as inaccessible to the understanding as a book that cannot be opened * * * something beyond understanding and therefore unknown. [1810 20] * * * sealed book noun Something beyond one s knowledge or understanding (also closed… …
92undiscoverably — adverb see undiscoverable …
93in|dis|cov|er|a|ble — «IHN dihs KUHV uhr uh buhl», adjective. not discoverable; undiscoverable …