1. Synonyms for Changelessness include constancy, stability, steadiness, immutability, invariability, unchangeableness, immutableness, fixedness, permanence and

2. 8 Python also has a concept of mutability and immutability: a tuple, for example, is an immutable list.

3. 26 It lacks the qualities associated with the perfection of the celestial sphere: circular motion, elemental purity, immutability.