Immutable: meaning, example and synonyms

Immutableadj. Unchanging over time; unable to be altered.

Example

Early astronomers regarded the heavens as immutable, so the sudden appearance of a bright new star unsettled long-held assumptions.

Part of speech: adjective
Synonyms: unchangeable, fixed, permanent, constant
Antonyms: changeable, mutable, variable, fluid
Memory tip: im (not) + mutable (changeable), as in mutation.

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Check yourself: Immutable in context

Pick the word that best completes each text.

Question 1

For centuries, many naturalists believed that species were ______, fixed in form since their creation and incapable of gradual change.

Question 2

Unlike the shifting fashions of the court, the monastery's daily schedule seemed ______: the same prayers at the same hours, year after year.

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