Definitions for

Overview of adj impregnable

The adj impregnable has 3 senses? (first 1 from tagged texts)
1. (1) impregnable, inviolable, secure, strong, unassailable, unattackable

(immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection")

2. conceptive, impregnable

(capable of conceiving)

3. impregnable, inexpugnable

(incapable of being overcome, challenged or refuted; "an impregnable argument"; "impregnable self-confidence") © 2001-2013, Demand Media, all rights reserved. The database is based on Word Net a lexical database for the English language. see disclaimer
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