Simple Definition of immutable

from our Learner's Dictionary

immutable

adjective

ɪˈmjuːtəbəl How to pronounce immutable (audio)
formal : unable to be changed
the immutable laws of nature
immutable opposition

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“Immutable.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/immutable. Accessed 15 Apr. 2026.

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