immutable

American  

[ih-myoo-tuh-buhl] / ɪˈmyu tə bəl /

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 British  

/ ɪˈmjuːtəbəl /

adjective

1. unchanging through time; unalterable; ageless

   immutable laws

---

Other Word Forms

• immutability noun
• immutableness noun
• immutably adverb

Etymology

Origin of immutable

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

Example Sentences

Cryptocurrencies are actually ill-suited for major criminal enterprises because transactions are permanent, immutable and traceable.

From The Wall Street Journal

This tour-de-force memoir of World War II in the Pacific, as experienced by the men on the ground, is an indelible and immutable account of the human experience of combat.

From The Wall Street Journal

But that’s not the most important part, which is that this is a beautiful, solid, immutable printed book.

From Los Angeles Times

He believes in a single, immutable truth—either you win, or you lose.

From Literature

If there’s one immutable fact about TV, it is that there’s no such thing as a sure thing.

From Salon

Related Words

• abiding
• enduring
• immovable
• inflexible
• sacrosanct