D defs.my
Entry 1 sense Webster, 1913

Inconvertible

· In·con·vert·i·ble · IPA
01 a. Not convertible; not capable of being transmuted, changed into, or exchanged for, something else; as, one metal is inconvertible into anoth…
  1. 1.
    Not convertible; not capable of being transmuted, changed into, or exchanged for, something else; as, one metal is inconvertible into another; bank notes are sometimes inconvertible into specie.