unexchangeable vs unconvertible

unexchangeable and unconvertible both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unexchangeable	No	Yes	No	No
unconvertible	No	Yes	No	No

As adjectives, unexchangeable and unconvertible are synonyms defined as:

unexchangeable and unconvertible: used especially of currencies; incapable of being exchanged for or replaced by another currency of equal value

Other synonyms of unexchangeable include inconvertible.

unexchangeable (adjective)	unconvertible (adjective)
not suitable to be exchanged	used especially of currencies; incapable of being exchanged for or replaced by another currency of equal value
used especially of currencies; incapable of being exchanged for or replaced by another currency of equal value