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

• immutably adverb
• immutability noun
• immutableness noun

Word History and Origins

Origin of immutable¹

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

Example Sentences

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

From Salon

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.

From Los Angeles Times

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

From Los Angeles Times

“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.

From Los Angeles Times

“All medical schools must abide by the law of the land and prioritize merit, not immutable characteristics, in admissions.”

From Los Angeles Times

Related Words

• abiding 
• enduring 
• immovable 
• inflexible 
• sacrosanct