/ Thesaurus / U Synonyms of undeciphered Find synonyms for: Adjective1. undeciphered (vs. deciphered)usage: not deciphered; "Linear A is still undeciphered"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language