inexpugnable(redirected from inexpugnability)
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1. Impossible to overcome or overthrow by force.
2. Impossible to put aside or drive away: inexpugnable dislike.
[Middle English, from Old French, from Latin inexpugnābilis : in-, not; see in-1 + expugnābilis, capable of being overcome (from expugnāre : ex-, completely; see ex- + pugnāre, to fight; see impugn).]
a rare word for impregnable1
ˌinexˌpugnaˈbility, ˌinexˈpugnableness n
in•ex•pug•na•ble(ˌɪn ɪkˈspʌg nə bəl)
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|Adj.||1.||inexpugnable - incapable of being overcome, challenged or refuted; "an impregnable argument"; "impregnable self-confidence"|
unconquerable - not capable of being conquered or vanquished or overcome; "a tribute to his courage...and his unconquerable will"- R.E.Danielson; "faced unconquerable difficulties"