Adjective: inconvertible ,in-kun'vur-tu-bul
- Not capable of being changed into something else
"the alchemists were unable to accept the inconvertible nature of elemental metals";
- untransmutable
- Used especially of currencies; incapable of being exchanged for or replaced by another currency of equal value
"The inconvertible currency made international trade difficult";
- unconvertible, unexchangeable
See also: convertibility, incommutable, irredeemable
Antonym: convertible