Impregnability definitions

Impregnability

1) Invulnerability 2) Safety
Found on https://www.crosswordclues.com/clue/impregnability

---

Impregnability

• (n.) The quality or state of being impregnable; invincibility.
Found on http://thinkexist.com/dictionary/meaning/impregnability/

---

Impregnability

Im·preg`na·bil'i·ty noun The quality or state of being impregnable; invincibility.
Found on http://www.encyclo.co.uk/webster/I/23

---