invariability
1. [ noun ] a quality of uniformity and lack of variation
Synonyms: evenness
Related terms: unevenness unevenness regularity uneven even
2. [ noun ] the quality of being resistant to variation
Synonyms: invariance invariableness
Related terms: variability variability changelessness unvariedness
Similar spelling:   invariably
  invariable
  invariance
  inferiority
  invariableness