substitutable vs commutable

substitutable and commutable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
substitutable	No	Yes	No	No
commutable	No	Yes	No	No

As adjectives, substitutable and commutable are synonyms defined as:

substitutable and commutable: capable of being exchanged for another or for something else that is equivalent

substitutable (adjective)	commutable (adjective)
capable of being exchanged for another or for something else that is equivalent	subject to alteration or change
(of words) interchangeable in a given context without changing the import of the expression	capable of being exchanged for another or for something else that is equivalent