inconvertible vs untransmutable

inconvertible and untransmutable both are adjectives.

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

As adjectives, inconvertible and untransmutable are synonyms defined as:

inconvertible and untransmutable: not capable of being changed into something else

inconvertible (adjective)	untransmutable (adjective)
used especially of currencies; incapable of being exchanged for or replaced by another currency of equal value	not capable of being changed into something else
not capable of being changed into something else