immutable

[ih-myoo-tuh-buhl]

adjective

1. not mutable; unchangeable; changeless.

2. Computers.,  (in object-oriented programming) of or noting an object with a fixed structure and properties whose values cannot be changed.

immutable

/ ɪˈmjuːtəbəl /

adjective

1. unchanging through time; unalterable; ageless

   immutable laws

Other Word Forms

• immutability noun
• immutableness noun
• immutably adverb

Word History and Origins

Origin of immutable¹

First recorded in 1375–1425; late Middle English, from Latin immūtābilis; im- ², mutable

Example Sentences

AI appears to be running up against some immutable laws of common sense.

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On one hand, they argue gender isn’t just inborn and immutable but that it’s wholly deterministic.

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The potential sale of the company has raised questions over privacy standards for genetic data, which experts say is uniquely sensitive, immutable and irreplaceable if stolen.

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The company’s bankruptcy has raised questions over privacy standards for genetic data, which experts say is uniquely sensitive, immutable and irreplaceable if stolen.

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“Even if companies don’t store raw biometric data, like retina scans, the derived identifiers are immutable … and permanently linked to the individuals they were captured from,” he said in an email.

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Related Words

• abiding 
• enduring 
• immovable 
• inflexible 
• sacrosanct