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WordNet-Online 
 Definitions from WordNet
Noun impregnability has 1 sense 
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| Definitions from the WebImpregnabilityDefinition:Impregnability refers to the quality or state of being impossible to conquer, penetrate, or overcome. Senses:
 Usage:Popularity: Impregnability is a term commonly used in military strategy and discussions surrounding fortress or fortification defenses. Locally: In our local community, the impregnability of old castle ruins is often a topic of interest and folklore. Sample Sentences:
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| imprecisely impreciseness imprecision imprecnation imprediment impreession imprefecyion impregment impregnability impregnable impregnably impregnate impregnated impregnation impregnent impresa impresario 
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