impenetrably
🇺🇸
/ɪmˈpenɪtrəbli/
🇬🇧
/ɪmˈpenɪtrəbli/
so difficult to understand that it's like a secret
The instructions were written in a language that was impenetrably complex.
這些說明是用一種難以理解的語言寫成的。
so thick or dense that nothing can pass through
The forest was so dense that it was impenetrably dark inside.
森林如此茂密,裡面黑暗得無法穿透。