ĭnădĭbĭlis — Lewis & Short
ĭnădĭbĭlis, e, adj.2. in-, 1. adeo,
I unapproachable, inaccessible:
lacus vestigio inspectoris,Sid. Ep. 2, 2 med.:
terra,Cassiod. Hist. Eccl. 11, 18.