# unimpregnable

> English word · Adjective

## Definitions
1. Not impregnable; capable of being pierced or assailed.
2. Incapable of being impregnated; impermeable or infertile.

## Etymology
From un- + impregnable.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/unimpregnable