invariability

/ɪnˌvɛriəˈbɪləti/
noun
  1. The quality of never changing or being always the same.
    • Scientists rely on the invariability of certain physical laws when conducting experiments.
    • She appreciated the invariability of her morning routine—it helped her stay focused.
    • The invariability of the sunrise gives people a sense of security.
Antonyms
What does "invariability" mean? | whatsthatwordmean | whatsthatwordmean