Search Result for "invariability": 
Wordnet 3.0

NOUN (2)

1. a quality of uniformity and lack of variation;
[syn: evenness, invariability]

2. the quality of being resistant to variation;
[syn: invariability, invariableness, invariance]



The Collaborative International Dictionary of English v.0.48:

Invariability \In*va`ri*a*bil"i*ty\, n. [Cf. F.
   invariabilit['e].]
   The quality of being invariable; invariableness; constancy;
   uniformity.
   [1913 Webster]


WordNet (r) 3.0 (2006):

invariability
    n 1: a quality of uniformity and lack of variation [syn:
         evenness, invariability] [ant: unevenness,
         variability]
    2: the quality of being resistant to variation [syn:
       invariability, invariableness, invariance] [ant:
       variability, variableness, variance]