INDECIPHERABLE Synonyms: 12 Similar and Opposite Words

indecipherable

adjective

ˌin-di-ˈsī-f(ə-)rə-bəl

as in illegible

incapable of being read or deciphered after so many years the paper label in the drawer of the antique desk is indecipherable

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Example Sentences

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.

Recent Examples of indecipherable Apple’s new guidelines might be a sign that the music industry understands why people want Sienna’s indecipherable shirts to come with a Transparency Tag. —

Jennifer Zhan, Vulture, 5 Mar. 2026 The highway sign was nearly indecipherable beneath layers of stickers and graffiti. —

Josh Jackson, Los Angeles Times, 5 Feb. 2026 Two streetlamps engaged in a mute but luminous dialogue, an indecipherable Morse code, alluding to the silent exchanges and secret ciphers of strangers who meet there for their trysts. —

Javier Montes, Artforum, 1 Jan. 2026 If the manual is indecipherable or nonexistent, which is often the case, a clear YouTube video or online guide can help. —

Larry Magid, Mercury News, 25 Dec. 2025 See All Example Sentences for indecipherable

Recent Examples of Synonyms for indecipherable

illegible

Adjective

Willimantic Police provided a handwritten log that was inconsistent and sometimes illegible.

— Ginny Monk, ProPublica, 27 Apr. 2026
Potier decodes that practically illegible document and creates a 3-D realization that grows from a fantastically complex swirl of interlocking geometries.

— Justin Davidson, Curbed, 23 Apr. 2026