Sentence examples similar to impenetrable instructions from inspiring English sources

"If companies that make flat-pack furniture used a system similar to masons' assembly marks to show which pieces went together, it could remove the need for the complex and often impenetrable instruction booklets they currently issue," she explains.

It turns out I wasn't the only one who hadn't attended a training session or who found the game instructions impenetrable, and this made me feel a little better.

The bit where someone suggests a board game, which gets opened and quickly abandoned because the instructions are so completely impenetrable?

Impenetrable explanations?

Impenetrable Web sites.

Neither defense looks impenetrable.

"It's impenetrable".

The city seemed impenetrable.

Her will seemed impenetrable.

He vivifies impenetrable privacies.

The thicket can be impenetrable.