" immutability "

1: the state of continuing without change;

  * e.g., " ... the immutability of the laws of physics is a myth, since refinements of those laws continue to be made "

•  Synonyms : 

•  changelessness,

•  constancy,

•  fixedness,

•  immutableness,

•  invariability,

•  stability,

•  steadiness,

•  unchangeableness

•  Antonyms : 

•  capriciousness,

•  changeability,

•  changeableness,

•  fickleness,

•  instability,

•  mutability,

•  unpredictability,

•  unsteadiness,

•  variability,

•  variableness,

•  volatileness,

•  volatility

1: not capable of changing or being changed;

  * e.g., " ... one of the immutable laws of television is that low ratings inevitably lead to cancellation "

•  Synonyms : 

•  fixed,

•  hard-and-fast,

•  inalterable,

•  incommutable,

•  inflexible,

•  invariable,

•  unalterable,

•  unchangeable

•  Antonyms : 

•  alterable,

•  changeable,

•  elastic,

•  flexible,

•  mutable,

•  variable