1. the quality or state of being unchanging or unable to be changed
Usage: formal; often used in philosophy, theology, and computing

Examples

• The immutability of the laws of physics is a cornerstone of modern science.
• In theology, God's immutability means He does not change over time.
• Programmers value immutability in data structures to prevent accidental modifications.
• The immutability of written records makes them valuable historical documents.
• Some philosophers debate whether true immutability exists in nature.
• The Constitution's immutability is protected by strict amendment procedures.