1 occurrence
'Impenetrable' in the Bible
They shall cut down her forest, saith Jehovah, though it be impenetrable; for they are more than the locusts, and are innumerable.
Bible Theasaurus
Defensible (1 instance)
Dense (17 instances)
Heavy (132 instances)
Impenetrable (8 instances)
Unintelligible (3 instances)