Impenetrable
/ɪmˈpɛnɪtrəbəl/
Definitions
2 meaningsImpossible to pass through or enter.
/ɪmˈpɛnɪtrəbəl/
Impossible to pass through or enter
The enemy's defenses were impenetrable, making any attack impossible.
💡 Simply: Imagine you're trying to get through a really, really tough wall, like one made of super-strong stuff. If it's 'impenetrable,' nothing can get in or out. It's like when you build a super-secret fort with walls nobody can break through!
👶 For kids: Something that is impenetrable means you can't go through it, like a wall that's too strong to break.
More Examples
The jungle was impenetrable, making it impossible to see through the dense vegetation.
The company's secrets were kept in an impenetrable vault.
How It's Used
"The fortress was surrounded by an impenetrable wall of granite."
"The jungle was so thick and tangled, it seemed impenetrable."
Impossible to understand; incomprehensible.
/ɪmˈpɛnɪtrəbəl/
Impossible to understand
The code was impenetrable, even for the most skilled programmers.
💡 Simply: Sometimes people or things can be hard to understand, like a really complex riddle. If something's 'impenetrable,' it's just so confusing that you can't make sense of it, no matter how hard you try.
👶 For kids: When something is impenetrable it means you can't figure it out or understand it.
More Examples
Her reasoning was completely impenetrable, making it impossible to follow her argument.
The company's new marketing strategy was impenetrable to its employees.
How It's Used
"The philosopher's writing was so abstract it was impenetrable to most readers."
"Her emotional state was impenetrable; no one could guess what she was feeling."
Synonyms & Antonyms
Synonyms
Antonyms
From Latin *impenetrabilis*, from *in-* (not) + *penetrabilis* (that can be penetrated), from *penetrare* (to penetrate). The word has been used in English since the late 16th century.
The word was used frequently in descriptions of military fortifications and natural obstacles in the 17th and 18th centuries. The figurative sense evolved later.
Memory tip
Think of an 'impenetrable' shield. It blocks everything from entering.
Word Origin
"to penetrate, to enter"