- variability, variableness, variance - the quality of being subject to variation
--1 is a kind of changeableness, changeability
Antonyms: invariability, invariableness, invariance
--1 has particulars: variedness; variegation - unevenness, variability - a quality of variability and lack of uniformity
--2 is a kind of irregularity, unregularity
Antonyms: evenness, invariability
--2 has particulars: jaggedness; patchiness; personal equation