insuperableness

== English == === Etymology === From insuperable + -ness. === Noun === insuperableness (uncountable) The quality of being insuperable or insurmountable; insuperability. === References === Noah Webster (1828), “insuperableness”, in An American Dictionary of the English Language: […], volume I (A–I), New York, N.Y.: […] S. Converse; printed by Hezekiah Howe […], →OCLC. William Dwight Whitney, Benjamin Eli Smith, editors (1895–1910), “insuperableness”, in The Century Dictionary and Cyclopedia: […], New York, N.Y.: The Century Co., →OCLC.