Adjective: unexchangeable ,ún-iks'cheyn-ju-bul
- Not suitable to be exchanged
"The personalized gift was unexchangeable at the store"
- Used especially of currencies; incapable of being exchanged for or replaced by another currency of equal value
"The unexchangeable currency made international trade difficult";
- inconvertible, unconvertible
See also: convertibility, incommutable, irredeemable
Antonym: exchangeable