immutable
adjective, noun
Forms immutables
- adjective Unable to be changed without exception. “The government has enacted an immutable law.”
- adjective (programming, of a variable) Not able to be altered in the memory after its value is set initially. “Constants are immutable.”
- noun Something that cannot be changed.
Synonyms
unchangeable bateless fixed inalterable invariable permanent perma- perpetual unabateable unalterable undeviating changeless
Antonyms
Etymology
From Middle English immutable, from Latin immūtābilis (“unchangeable”); im- + mutable.
Webster’s 1913
- adjective Not mutable; not capable or susceptible of change; unchangeable; unalterable.
Etymology [L. immutabilis; pref. im- not + mutabilis mutable. See Mutable.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “immutable”, CC BY-SA 4.0. Details