Definition Of impenetrable
impossible to pass through or enter.
a dark, impenetrable forest
impossible to understand.
impenetrable interviews with French intellectuals
Example Of impenetrable
A youngster whose height and strength makes him an almost impenetrable barrier, he was an inspiring character.
Ask a financial market dealer or analyst, and a spray of impenetrable jargon appears.
But as a technology columnist, I'm in the business of coming up with confusing and impenetrable reactions to events around me.
But for most parents the school classroom is a place as mysterious and impenetrable as their teenager's bedroom.
But I suppose it was too much to expect for him to have a black, twirly moustache and for her to cackle mysteriously from beneath an impenetrable black shroud.