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Word of the Day Tuesday, June 9, 2026

undecipherable

/ˌʌndɪˈsɪfərəbəl/ adjective · British & US
Valid in UKValid in US
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What does undecipherable mean?

adjective

Impossible to decipher or understand; too difficult to be interpreted or solved.

Example

"The ancient hieroglyphics were undecipherable to anyone who didn't speak the language."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for undecipherable

Antonyms of undecipherable

Rhymes with undecipherable

Etymologically related