Immutable

Adjective

Definition: Unable to be changed or altered over time.

Synonyms: Unchangeable, Fixed, Permanent

Antonyms: Changeable, Mutable, Alterable

Examples:
  • The laws of nature are immutable and constant.
  • His beliefs remained immutable despite the criticisms.
Mnemonics:
  • Think of "im" as meaning "not" (e.g., impossible, impractical), and "mutable" as meaning "changeable". So, "immutable" means "not changeable".

Etymology:

Origin:

Derived from the Latin word "immutabilis" which is a combination of "in-" (not) and "mutabilis" (changeable).

Historical Usage:

The term has been in use since the 15th century and has retained its meaning throughout history.

Related Idioms:

Idiom:

"Immutable law"

Explanation:

Refers to a law or principle that cannot be altered or modified.

Misconceptions:

Misconception:

Using "immutable" interchangeably with "unchangeable".

Explanation:

While "immutable" and "unchangeable" have similar meanings, "immutable" specifically emphasizes the idea of being unalterable over time, while "unchangeable" can simply mean something that is not currently changing or cannot be changed at a particular point in time.

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