incommutable vs inconvertible

incommutable and inconvertible both are adjectives.

Word	Noun	Adjective	Verb	Adverb
incommutable	No	Yes	No	No
inconvertible	No	Yes	No	No

incommutable (adjective)	inconvertible (adjective)
not subject to alteration or change	used especially of currencies; incapable of being exchanged for or replaced by another currency of equal value
not interchangeable or able to substitute one for another	not capable of being changed into something else