inexpugnably

== English == === Etymology === From inexpugnable +‎ -ly. === Adverb === inexpugnably (comparative more inexpugnably, superlative most inexpugnably) In an inexpugnable manner. === References === “inexpugnably”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.