adjective \(ˌ)i(m)-ˈmyü-tə-bəl\

: unable to be changed

Full Definition of IMMUTABLE

:  not capable of or susceptible to change
im·mu·ta·bil·i·ty \-ˌmyü-tə-ˈbi-lə-tē\ noun
im·mu·ta·ble·ness \-ˈmyü-tə-bəl-nəs\ noun
im·mu·ta·bly \-blē\ adverb

Examples of IMMUTABLE

  1. the immutable laws of nature
  2. <one of the immutable laws of television is that low ratings inevitably lead to cancellation>


Middle English, from Latin immutabilis, from in- + mutabilis mutable
First Known Use: 15th century


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