Inexsuperable
Pronunciation : In`ex*su"per*a*ble
Part of Speech : a.
Etymology : [L. inexsuperabilis; pref. in- not + exsuperabilis that may be surmounted. See In- not, Ex-, and Superable.]
Definition : Defn: Not capable of being passed over; insuperable; insurmountable.
Source : Webster's Unabridged Dictionary, 1913