Meaning of “immutable” in the English Dictionary

(Definition of “immutable” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"immutable" in American English

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immutableadjective [ not gradable ]

us /ɪˈmju·t̬ə·bəl/ fml

not changing or unable to be changed:

The laws of physics are assumed to be immutable.

(Definition of “immutable” from the Cambridge Academic Content Dictionary © Cambridge University Press)