Word.ws English Dictionary

undecipher

undecipher verb: to decipher.

Verb

undecipher (third-person singular simple present undeciphers, present participle undeciphering, simple past and past participle undeciphered)

  1. (rare, transitive) To decipher.
    • I am sure your Lordship is concerned in the former, and I think also in the latter; a good part whereof was written in characters, and cyphers set for the names. He that did undecypher it is a most honest man, and is very confident he hath hit it right.1644 March 3, Robert King, “[Letter to the Marquess of Ormonde]”, in Thomas Carte, editor, Collection of Letters, Written by the Kings Charles I and II […] and Other Great Men during the Troubles of...
    • It were very good policy in times of warre, suites, or jealousie, to learne to undecipher mouths, lookes, and gates; there is more to be got out of them, then out of this extaticall speech […]1654, Edmund Gayton, Pleasant Notes upon Don Quixot, page 6

Forms of undecipher

third-person singular presentundeciphers
present participleundeciphering
past participleundeciphered
pastundeciphered

Origin of undecipher

From un- (intensifier) + decipher.

Questions about undecipher

What does undecipher mean?
Undecipher means to decipher.
What part of speech is undecipher?
Undecipher is a verb.
What is the past tense of undecipher?
The past tense of undecipher is undeciphered.

Words near undecipher in the dictionary

  1. undecimvir
  2. undecimvirate
  3. undecimvirates
  4. undecimviri
  5. undecimvirs
  6. undecipher
  7. undecipherability
  8. undecipherable
  9. undecipherably
  10. undeciphered
  11. undeciphering

Source and license

Adapted from Wiktionary: undecipher (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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