unexchangeable

Definitions of unexchangeable

1. adjective

   not suitable to be exchanged
   synonyms:

   incommutable

   not interchangeable or able to substitute one for another

   antonyms:

   exchangeable

   suitable to be exchanged

   commutable, substitutable

   capable of being exchanged for another or for something else that is equivalent

   fungible

   of goods or commodities; freely exchangeable for or replaceable by another of like nature or kind in the satisfaction of an obligation

   permutable, transposable

   capable of changing sequence

   vicarious

   suffered or done by one person as a substitute for another
2. adjective

   used especially of currencies; incapable of being exchanged for or replaced by another currency of equal value
   synonyms: inconvertible, unconvertible

   irredeemable

   (of paper money) not convertible into coin at the pleasure of the holder