Inexpugnably

The Century Dictionary and Cyclopedia
  • In an inexpugnable manner; impregnably: as, “inexpugnably lodged,”
  • the GNU version of the Collaborative International Dictionary of English
  • adverb. So as to be inexpugnable; in an inexpugnable manner.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • adverb. In an inexpugnable manner.
  • Word Usage
    "Andalusia not being Gothic had never been Aryan, and it was one of her kings who carried his orthodoxy to Castile and established it inexpugnably at Toledo after he succeeded his heretical father there."