undeciphered
- a not deciphered
Linear A is still undeciphered
- While trying to take to pieces the undeciphered written language of ancient Crete, he became suspicious of Sir Arthur's belief that Knossos was "the most ancient center of .
- Only burial tombs and a few walls remain of their once-sumptuous cities, their ancient Greek script is largely undeciphered, most of their art has been dispersed and lost.
- Its writing, etched in signs on tiny, intricate seals and tablets, remains undeciphered, shrouding the ancient culture in mystery.