impenetrableness

the forest’s impenetrableness discouraged any further exploration.

despite their efforts, the impenetrableness of the data proved insurmountable.

the impenetrableness of the jungle was a formidable barrier to their progress.

he admired the impenetrableness of the ancient castle walls.

the impenetrableness of the bureaucratic system frustrated many applicants.

the impenetrableness of the code made reverse engineering nearly impossible.

she was struck by the impenetrableness of his silence.

the impenetrableness of the mountain range presented a significant challenge.

the impenetrableness of the fog made visibility extremely poor.

the impenetrableness of the enemy lines was a major tactical advantage.

the impenetrableness of the research project’s findings was initially unclear.