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English to English adjective
| 1 |
Not to be stormed, or taken by assault; incapable of being subdued; able to resist attack; unconquerable; as, an impregnable fortress; impregnable virtue. |  | source: webster1913
| 2 |
Capable of being impregnated, as the egg of an animal, or the ovule of a plant. | | source: webster1913
adjective satellite
| 3 |
immune to attack; incapable of being tampered with | | Example: an impregnable fortress
fortifications that made the frontier inviolable
a secure telephone connection
source: wordnet30
| 4 |
capable of conceiving | | source: wordnet30
| 5 |
incapable of being overcome, challenged or refuted | | Example: an impregnable argument
impregnable self-confidence
source: wordnet30
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