Unexchangeable

1 definition found

From WordNet (r) 2.0 [wn]:

  unexchangeable
       adj 1: not suitable to be exchanged [ant: {exchangeable}]
       2: used especially of currencies; incapable of being exchanged
          for or replaced by another currency of equal value [syn: {inconvertible},
           {unconvertible}] [ant: {convertible}]