1 occurrence
'Impregnable' in the Bible
For Tyre built herself an [impregnable] stronghold [on an island offshore],And she has heaped up silver like dustAnd gold like the mire of the streets.
Bible Theasaurus
Defensible (1 instance)
Impregnable (2 instances)
Resistless (2 instances)
Secure (159 instances)
Strong (864 instances)
Unassailable (2 instances)