imprescriptiˈbilityrare. [f. next + -ity. Cf. F. imprescriptibilité (1732 in Hatz.-Darm.).] The quality of being imprescriptible. 1797tr.Vattel's Law of Nations (Webster 1828).1806W. Taylor in Ann.Rev. IV. 263 The imprescriptibility of royal titles form[s] no part of the law of nations.