Antonyms of noun variableness

1 sense of variableness

Sense 1
variability, variableness, variance -- (the quality of being subject to variation)
       Antonym of invariableness (Sense 1)
      => invariability, invariableness, invariance -- (the quality of being resistant to variation)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun variableness

1 sense of variableness

Sense 1
variability, variableness, variance -- (the quality of being subject to variation)
       => changeableness, changeability -- (the quality of being changeable; having a marked tendency to change; "the changeableness of the weather")