insurmountable

adj

Etymology: Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in-bor. Middle English in- English in- English surmount Proto-Indo-European *-tḗr Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English surmountable English insurmountable From in- + surmountable.

1. Incapable of being passed over, surmounted, or overcome; insuperable

   “Getting everybody to agree proved to be an insurmountable difficulty.”

   “Overcoming Japan’s demographic crisis has proved insurmountable for occupants of the Kantei – the prime minister’s office – long before Kishida moved in last autumn.”