impenetrable

4 definitions • 5 examples

impossible to see through or go through:

Outside, the fog was thick and impenetrable.

an impenetrable barrier

impossible to understand:

Some of the lyrics on their latest album are completely impenetrable.

impossible to enter or go through:

an impenetrable jungle

If language is described as impenetrable, it is impossible to understand:

Too many scholarly books are written in an impenetrable jargon.