immutable
/ˌɪmˈjutəbəɫ/
unchanging over time or unable to be changed
immutable in a sentence
“The laws of physics are considered immutable.”
Origin of immutable
Latin immutabilis unchangeable from in- not + mutabilis changeable from mutare to change
Related Words
indelible
making marks that cannot be removed; unforgettable
ineffaceable
unable to be erased or forgotten
vestige
a trace of something that is disappearing or no longer exists
remnant
a small remaining quantity; a surviving trace
relic
an object surviving from an earlier time; something outdated
antiquated
old-fashioned or outdated