✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

indecipherable

adjective

in·​de·​ci·​pher·​able ˌin-di-ˈsī-f(ə-)rə-bəl How to pronounce indecipherable (audio)
Synonyms of indecipherablenext
: incapable of being deciphered
indecipherable writing
an indecipherable message
indecipherably adverb

Synonyms of indecipherable

Examples of indecipherable in a Sentence

His handwriting is almost indecipherable. after so many years the paper label in the drawer of the antique desk is indecipherable
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The next call was barely a call at all — a faint, almost indecipherable voice tangled in the sound of rushing water. Amanda Jackson, CNN Money, 5 Dec. 2025 Much of what Hassona says is indecipherable. Bilge Ebiri, Vulture, 7 Nov. 2025 Inside the cave everything is indecipherable without a flashlight. Hazlitt, 29 Oct. 2025 Many listeners felt the quality of Lennon’s home recordings left the singer muddy and indecipherable in the mix. Dave Paulson, Forbes.com, 19 Aug. 2025 See All Example Sentences for indecipherable

Word History

First Known Use

1802, in the meaning defined above

Time Traveler
The first known use of indecipherable was in 1802

Browse Nearby Words

Cite this Entry

“Indecipherable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/indecipherable. Accessed 8 Dec. 2025.

More from Merriam-Webster on indecipherable

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!