immutable

[ ih-myoo-tuh-buh l ]
/ ɪˈmyu tə bəl /

adjective

not mutable; unchangeable; changeless.

Origin of immutable

First recorded in 1375–1425; late Middle English word from Latin word immūtābilis. See im-2, mutable
Related formsim·mu·ta·bil·i·ty, im·mu·ta·ble·ness, nounim·mu·ta·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for immutability

British Dictionary definitions for immutability

immutable

/ (ɪˈmjuːtəbəl) /

adjective

unchanging through time; unalterable; agelessimmutable laws
Derived Formsimmutability or immutableness, nounimmutably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012