Antonyms of adj commutable

2 senses of commutable

Sense 1
commutable (vs. incommutable) -- (subject to alteration or change; "the death sentence was commutable to life imprisonment")

incommutable (vs. commutable) -- (not subject to alteration or change)
        => inconvertible, untransmutable -- (not capable of being changed into something else; "the alchemists were unable to accept the inconvertible nature of elemental metals")
        => unalterable -- (of a sentence; that cannot be changed; "an unalterable death sentence")

Sense 2
commutable, substitutable -- (capable of being exchanged for another or for something else that is equivalent)

INDIRECT (VIA exchangeable) -> unexchangeable -- (not suitable to be exchanged)

Similarity of adj commutable

2 senses of commutable

Sense 1
commutable (vs. incommutable) -- (subject to alteration or change; "the death sentence was commutable to life imprisonment")
       => alterable -- ((of the punishment ordered by a court) capable of being changed to one less severe)
       => convertible, transformable, translatable, transmutable -- (capable of being changed in substance as if by alchemy; "is lead really transmutable into gold?"; "ideas translatable into reality")

Sense 2
commutable, substitutable -- (capable of being exchanged for another or for something else that is equivalent)
       => exchangeable (vs. unexchangeable) -- (suitable to be exchanged)