Webimpregnable: [adjective] incapable of being taken by assault : unconquerable.

Webimpregnable definition: 1. A building or other place that is impregnable is so strongly built and/or defended that it…. Learn more.

WebImpregnable definition, strong enough to resist or withstand attack; not to be taken by force, unconquerable: an impregnable fort. See more.

Webim·preg·na·ble 1 1. Impossible to capture or enter by force: an impregnable fortress. 2. Difficult or impossible to attack, challenge, or refute with success: an impregnable argument.

Webimpregnable Add to list Share adjective immune to attack; incapable of being tampered with “an impregnable fortress” synonyms: inviolable, secure,... adjective incapable of being overcome, challenged, or refuted “an impregnable argument” “ impregnable... adjective capable of conceiving synonyms: ...

WebBritannica Dictionary definition of IMPREGNABLE. 1. : not able to be captured by attack : very strong. an impregnable fortress. impregnable defenses. 2. : not likely to be weakened or changed. an impregnable reputation. Her arguments seemed impregnable.

WebPrinceton's WordNet (5.00 / 1 vote) Rate this definition: impregnable, inviolable, secure, strong, unassailable, unattackable adjective immune to attack; incapable of being... conceptive, impregnable adjective capable of conceiving impregnable, inexpugnable adjective incapable of being overcome, ...