immutable

What does “immutable” mean?

adjective.unchanging over time or unable to be changed.

SAT Usage

this term often appears in contexts discussing philosophy, science, or social structures, emphasizing the idea of permanence or resistance to change. It suggests a strong, often absolute quality, distinguishing it from similar terms like "static," which may imply lack of movement without the same connotation of unchangeability.

Common Confusions

Immutable implies a permanent state that cannot be altered, while static usually suggests a lack of movement or change without the same implication of being unchangeable.

Example Sentences

• The government has enacted an immutable law.

• Constants are immutable.

Word Parts: How to Remember “immutable”

Break “immutable” into its parts: in- (not) + -mut- (change). Knowing roots like these helps you decode unfamiliar SAT vocabulary.

• Prefix: in- not (Latin)
• Root: -mut- change (Latin)