mutatis mutandis


mu·​ta·​tis mu·​tan·​dis m(y)ü-ˈtä-təs-m(y)ü-ˈtän-dəs How to pronounce mutatis mutandis (audio)
-ˈtan- How to pronounce mutatis mutandis (audio)
: with the necessary changes having been made
: with the respective differences having been considered

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Unlike most English terms with Latin parentage, mutatis mutandis (which translates literally as "things having been changed that have to be changed") maintains its Latinate aspect entirely. It doesn't look like an English phrase, which is perhaps why it remains rather uncommon despite having functioned in English since the 16th century. Although the phrase is used in the specialized fields of law, philosophy, and economics when analogous situations are discussed, it appears in other contexts, too, where analogy occurs, as this quote from Henry James' The American demonstrates: "Roderick made an admirable bust of her at the beginning of the winter, and a dozen women came rushing to him to be done, mutatis mutandis, in the same style."

Example Sentences

Recent Examples on the Web Who else would drop the phrase mutatis mutandis into an FBI interview? Neal B. Freeman, National Review, 10 Feb. 2023 That sentence, mutatis mutandis, could have been written about India, where Islamic invasions and British rule still produced an anxiety about authenticity — what was one’s own, what had come from outside. New York Times, 11 Nov. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mutatis mutandis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History


Middle English, from Medieval Latin

First Known Use

circa 1525, in the meaning defined at sense 1

Time Traveler
The first known use of mutatis mutandis was circa 1525


Dictionary Entries Near mutatis mutandis

Cite this Entry

“Mutatis mutandis.” Dictionary, Merriam-Webster, Accessed 25 Mar. 2023.

Last Updated: - Updated example sentences
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