1. (noun) the quality of being unchangeable; having a marked tendency to remain unchanged

• unchangeability
• unchangeableness
• unchangingness

1. (noun) the quality of being unchangeable; having a marked tendency to remain unchanged

• absoluteness
• constancy
• stability
• fixedness
• unalterability
• fixity
• immutability
• immutableness
• innateness
• invariability
• invariableness
• invariance
• irreversibility
• unexchangeability

1. (noun) the property of remaining unchanged

• durability
• enduringness
• lastingness
• strength

2. (noun) the quality of being unchangeable; having a marked tendency to remain unchanged

• quality

1. (noun) the quality of being unchangeable; having a marked tendency to remain unchanged

• changeability
• changeableness

1. (noun) the property of remaining unchanged

• changeless
• constant
• invariant
• unvarying

2. (noun) the quality of being unchangeable; having a marked tendency to remain unchanged

• changeless
• unalterable
• changeless
• immutable
• stable
• static
• unchanging
• unchangeable
• unchangeable
• unchanging