impenetrable
/ɪmˈpɛnətɹəbəl/
Word Rarity
Rare
Frequency: 3.07 in modern English
18
Scrabble Score
12
Letters
5
Syllables
10
Unique Chars
Meaning
adj
Not penetrable.
adj
Opaque; obscure; not translucent or transparent.
noun
A person not openly given to friendship.
Example Sentences
- "The fortress is impenetrable, so it cannot be taken."
- "The avalanche spread and stopped, locking everything it carried into an icy cocoon. It was now a jagged, virtually impenetrable pile of ice, longer than a football field and nearly as wide."
- "When night falls, she cloaks the world in impenetrable darkness."
- "Business jargon makes this document impenetrable—I can’t understand it."
- "I should lose the reputation that I am gradually acquiring among our impenetrables here, were I to confess the excitement which I felt at the idea of entering his house—the house of that great general under whose command you made your first charge."
Etymology
From Middle English inpenetrabel, inpenetrabyle, from Middle French impenetrable or directly from its etymon, Latin impenetrābilis. By surface analysis, im- + penetrable.