transcription, транскрипция: [ ˌin-kə-ˈmyü-tə-bəl ]
adjective
Etymology: Middle English, from Latin incommutabilis, from in- + commutabilis commutable
Date: 15th century
: not commutable: as
a. : not interchangeable
b. : unchangeable
• in·com·mut·ably -blē adverb