immutable
nounEtymology From Middle English immutable, from Latin immūtābilis (“unchangeable”); im- + mutable.
1
Something that cannot be changed.
immutable
adjEtymology From Middle English immutable, from Latin immūtābilis (“unchangeable”); im- + mutable.
1
Unable to be changed without exception.
- The government has enacted an immutable law.
- Mutable as is our nature, it delights in the immutable: and we expect as much constancy as if all time, to say nothing of our own changeableness, had not shewn that ever "the fashion of this world passeth away."1834, L[etitia] E[lizabeth] L[andon], chapter XIV, in Francesca Carrara. […], volume II, London: Richard Bentley, […], (successor to Henry Colburn), →OCLC, page 171:
1 more example
- In the trustless cryptocurrency world, you can still trust the cryptocurrency community and its mechanisms to ensure that the blockchain contains an accurate and immutable—unchangeable—record of cryptocurrency transactions.2019, Peter Kent, Tyler Bain, Cryptocurrency Mining For Dummies, John Wiley & Sons, →ISBN, page 30:
2
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Programming, Sciences Of a variable Not able to be altered in the memory after its value is set initially.
- Constants are immutable.
- Synonyms
- bateless, fixed, immutable, inalterable, invariable, permanent, perma-, perpetual, unabateable, unalterable, unchangeable, undeviating
- Antonyms
- mutable, nonimmutable
- Derived terms
- immutableness, immutably, strongly immutable, weakly immutable
- Related terms
- perennial, changeless, indomitable