Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
impossible to decipher
Grammar usage guide and real-world examplesUSAGE SUMMARY
'impossible to decipher' is a correct and usable phrase in written English.
You can use it when something is too complicated or difficult to interpret or understand. For example: The code in the ancient hieroglyphics was impossible to decipher.
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
unintelligible
incomprehensible
indecipherable
beyond comprehension
unfathomable
impenetrable
opaque
unable to decipher
infeasible to decipher
impossible to interpret
impossible to please
impossible to abandon
impossible to outrun
impossible to eat
impossible to assemble
impossible to get
impossible to be
impossible to believe
impossible to know
impossible to price
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
56 human-written examples
Amongst the ornaments were a pin of the Dalai Lama placed next to a police patch, another code seemingly impossible to decipher, but then again, the impossibility of meaning seems to be Koh's favorite artifice.
News & Media
Once inside, its geography is impossible to decipher.
News & Media
GCHQ had previously said the 27 five letter blocks were impossible to decipher.
News & Media
That cause, though, in specific terms, was virtually impossible to decipher.
News & Media
Sentences splattered with dashes, parentheses and semicolons are almost impossible to decipher.
News & Media
The remaining posters were scarred and wind-bleached and almost impossible to decipher.
News & Media
It was impossible to decipher my handwriting, and I kept throwing up.
News & Media
The Gucci language is easy to distinguish, but it is almost impossible to decipher the meaning within.
News & Media
Candlelight may be authentic, but it renders the guidebook, not to mention documents written in blobby, iron-gall ink, impossible to decipher.
News & Media
Though their views are diverse, what exactly unites them is anything but "impossible to decipher": the rampant corruption of the country's politics by a wealthy few.
News & Media
"It's impossible to decipher any strategy, any vision, any policy, and most importantly, any way forward — a credible solution to the crisis".
News & Media
Expert writing Tips
Best practice
Consider the context when using this phrase. It's most effective when applied to situations where understanding is actively sought but unattainable due to inherent obscurity.
Common error
Avoid using "impossible to decipher" when "difficult to understand" or "unclear" would suffice. This phrase conveys a sense of fundamental unreadability, not just minor confusion.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "impossible to decipher" functions as an adjective phrase modifying a noun, indicating a quality of being fundamentally unreadable or unintelligible. As indicated by Ludwig, this phrase is a valid expression.
Frequent in
News & Media
49%
Science
30%
Formal & Business
7%
Less common in
Wiki
5%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "impossible to decipher" is a grammatically correct and frequently used phrase that describes something fundamentally unreadable or unintelligible. Ludwig confirms its validity for use. It's most commonly found in news and media, and scientific contexts, suggesting a neutral register. When using the phrase, it's important to ensure the context genuinely reflects a total inability to understand, rather than just a temporary difficulty. Alternatives like "unintelligible" or "incomprehensible" may be more appropriate depending on the specific situation.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
indecipherable
A direct synonym, maintaining the same connotation of being uncrackable.
incomprehensible
Emphasizes the difficulty in grasping the meaning, suggesting a higher level of complexity.
cryptic
Suggests that the information is deliberately hidden or encoded, making it challenging to understand.
unintelligible
Highlights the lack of comprehensibility, applicable to various forms of communication, not just codes or writing.
inscrutable
Highlights the mysterious and enigmatic nature of something, making it hard to interpret.
beyond comprehension
Stresses that the matter is outside the realm of being understood.
unfathomable
Suggests that the subject is too deep or complex to be understood, implying a mystery.
impenetrable
Implies that something is so complex or dense that it cannot be accessed or understood.
unreadable
Focuses on the inability to read written text, which is a specific form of deciphering.
opaque
Indicates a lack of transparency or clarity, making understanding difficult.
FAQs
What does "impossible to decipher" mean?
The phrase "impossible to decipher" means something is so obscure, encoded, or complex that it cannot be understood or interpreted. It suggests a complete inability to find meaning, even with effort.
How can I use "impossible to decipher" in a sentence?
You might say, "The ancient text was "impossible to decipher" due to the lost language" or "His intentions were "impossible to decipher", making it hard to trust him."
What are some alternatives to "impossible to decipher"?
Depending on the context, you could use phrases like "unintelligible", "incomprehensible", "indecipherable", or "beyond comprehension".
Is it better to say "difficult to decipher" or "impossible to decipher"?
"Difficult to decipher" suggests understanding is challenging but achievable, while ""impossible to decipher"" indicates a complete barrier to understanding. Choose the phrase that accurately reflects the situation.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested