Exact(55)
A world impenetrable to outsiders.
The style, too, is impenetrable to most non-geeks.
You want the name to be impenetrable to change".
THE tribal areas of Pakistan's borderlands are wild, rugged and impenetrable to most outsiders.
Even then, it was impenetrable to most of the villagers, who spoke only a tribal vernacular.
Outdated floppy disks and hard drives can be impenetrable to current technologies.
Japan's retail and financial markets were all but impenetrable to American competitors.
Its community of longshoremen, scrapping for work and working for scraps, was impenetrable to outsiders.
The IUD emits a progestin that thickens the cervical mucus, making it impenetrable to sperm.
My brother could follow what I was doing, but his pursuits remained impenetrable to me.
Local government can seem monolithic and impenetrable to those on the outside in the tech community.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com