unexchangeable vs irredeemable

unexchangeable and irredeemable both are adjectives.

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

unexchangeable (adjective)	irredeemable (adjective)
not suitable to be exchanged	(of paper money) not convertible into coin at the pleasure of the holder
used especially of currencies; incapable of being exchanged for or replaced by another currency of equal value	insusceptible of reform