impregnable — impossible to capture or break into; unconquerable
Part of speech: ADJECTIVE
Definition: impossible to capture or break into; unconquerable
Pronunciation (IPA): /ɪmˈpreɡnəbəl/
Example Sentences
- My grandmother's recipe box is an impregnable vault of family secrets.
- The company's cybersecurity system proved impregnable against all hacking attempts.
- His impregnable confidence sometimes bordered on arrogance.
impregnable
ADJECTIVE[/ɪmˈpreɡnəbəl/]
impossible to capture or break into; unconquerable

The impregnable fortress stood untouched after weeks of siege.

An impregnable fortress creates unforgettable defeats!
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🎤Pronunciation
🌳Etymology
Origin
From French 'imprenable' (early 16th century), derived from the prefix 'im-' (not) combined with 'prenable' (capable of being taken), which comes from Latin 'prendere' meaning 'to take' or 'to seize'.
Breakdown
im- (not) + pregn- (from Latin prendere, to take) + -able (capable of being) = impregnable (not capable of being taken)
🎵Rhyme
🔗Collocations
📝Examples
“My grandmother's recipe box is an impregnable vault of family secrets.”
“The company's cybersecurity system proved impregnable against all hacking attempts.”
“His impregnable confidence sometimes bordered on arrogance.”
“The teenager's bedroom was an impregnable fortress of dirty laundry and pizza boxes.”
📚Related Words
Synonyms
Antonyms
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