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impregnable

audio pronunciation audio pronunciation
adjective
  • so strong and well-constructed that it cannot be entered orcaptured [Barron]
  • invulnerable [Nandigam]

More word meanings for impregnable
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Wiktionary:
impregnable @ wiktionary
WordNet:
impregnable @ wordnet.princeton.edu
Merriam-Webster Online:
impregnable @ M-W.com
MSN Encarta:
impregnable @ Encarta
American Heritage Dictionary of the English Language:
impregnable @ AHD provided by Yahoo! Education
Answers.com:
impregnable @ Answers.com
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