Dictionary

incommutable

adjective in·com·mut·able \ˌin-kə-ˈmyü-tə-bəl\

Definition of INCOMMUTABLE

:  not commutable: as
a :  not interchangeable
b :  unchangeable
in·com·mut·ably \-blē\ adverb
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Origin of INCOMMUTABLE

Middle English, from Latin incommutabilis, from in- + commutabilis commutable
First Known Use: 15th century

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