Impenetrable definition
Business jargon makes this document impenetrable, I can't understand it.
An example of something impenetrable is an overgrown hiking trail; an impenetrable trail.
An example of something impenetrable is a riddle that has never been figured out.
An impenetrable fortress.
Impenetrable jargon.
An impenetrable heart.
An impenetrable jungle.
Origin of impenetrable
- From Middle French impenetrable, from Latin impenetrabilis.
From Wiktionary