Word: impenetrable
Phonetic:
/ɪmˈpɛnətɹəbəl/Listen:
Not penetrable. Example: The fortress is impenetrable, so it cannot be taken.
Incomprehensible; fathomless; inscrutable. Example: Business jargon makes this document impenetrable, I can't understand it.
Opaque; obscure; not translucent or transparent. Example: When night falls, she cloaks the world in impenetrable darkness.
You can find a list of possible crossword clues for IMPENETRABLE below.