invariability
In*va`ri*a*bil"i*ty, n. Etym: [Cf. F. invariabilité.] Defn: The quality of being invariable; invariableness; constancy; uniformity.
In*va`ri*a*bil"i*ty, n. Etym: [Cf. F. invariabilité.] Defn: The quality of being invariable; invariableness; constancy; uniformity.