adjective
definition
Impossible to eliminate or destroy; impregnable.
Examples of inexpugnable in a Sentence
Nevertheless pleasure forms an "inexpugnable element" of the moral aim (§ 16).
Gregory's position was almost inexpugnable at a time when it was conceded by practically all that spiritual concerns were incalculably more momentous than secular, that the Church was rightly one and indivisible, with one divinely revealed faith and a system of sacraments absolutely essential to salvation.
Its reputation in this is quite inexpugnable.
It thus fell to the infantry to attack and defend with its own weapons, and the defence was, locally, almost inexpugnable behind its tall breastworks.