Synonyms of the word

invariance

• n. the property of being invariant.

changelessness

• n. The state or quality of being changeless.

constancy

• n. (uncountable) The quality of being constant; steadiness or faithfulness in action, affections, purpose,…
• n. (countable) An unchanging quality or characteristic of a person or thing.

invariability

• n. The quality of being invariable; invariableness; constancy; uniformity.

invariableness

• n. The state of being invariable; constancy of state, condition, or quality; immutability; unchangeableness.

stability

• n. The condition of being stable or in equilibrium, and thus resistant to change.
• n. The tendency to recover from perturbations.

unchangeability

• n. (uncountable) The property of being unchangeable.
• n. (countable) The extent to which something is unchangeable.

unchangeableness

• n. The state or quality of being unchangeable; immutability.

unchangingness

• n. The quality of being unchanging; constancy.