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
cannot be understood
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'cannot be understood' is correct and can be used in written English.
You can use it to indicate that something is not clear or comprehensible. For example, "The complex instructions given by the teacher cannot be understood."
✓ Grammatically correct
News & Media
Academia
Science
Encyclopedias
Alternative expressions(20)
cannot be explained
is incomprehensible
is beyond comprehension
is unintelligible
defies explanation
remains a mystery
is not clear
is not discernible
has not obtained yet
is unavailable
is not assembled
is devoid of
is not available yet
has yet to be updated
is without
remains unupdated
cannot be found
has not yet resigned
is unrecoverable
has not arrived
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
60 human-written examples
Mystery, by definition, cannot be understood.
News & Media
The referral cannot be understood without appreciating this vital distinction.
News & Media
Thus, intelligence simply cannot be understood without understanding social cognition.
It cannot be understood in any other way.
Academia
China's Leninist corporatism cannot be understood as a market economy.
News & Media
But the one cannot be understood without the other.
News & Media
Conservation cannot be understood without taking into account the interaction among species.
News & Media
Painted colour cannot be understood in the same way as coloured light.
News & Media
The results cannot be understood until they are decoded - and P&G possessed the key.
News & Media
The history of Islamdom cannot be understood without reference to them.
Encyclopedias
Iran's continuing suspicions of America and Europe cannot be understood without remembering that grim period.
News & Media
Expert writing Tips
Best practice
Use "cannot be understood" to express the idea that something is beyond one's ability to grasp or comprehend. It's effective for describing complex theories, abstract concepts, or situations lacking clear information.
Common error
Avoid overusing passive constructions with "cannot be understood", as it can sometimes make writing sound convoluted. Consider if an active voice construction would be clearer and more direct. For example, instead of "The report's findings cannot be understood", try "Readers cannot understand the report's findings".
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "cannot be understood" functions as a passive construction indicating a lack of comprehensibility. Ludwig AI confirms its grammatical correctness and widespread usage. It's used to express that something is beyond one's ability to grasp or make sense of.
Frequent in
News & Media
37%
Academia
27%
Encyclopedias
15%
Less common in
Science
15%
Formal & Business
1%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "cannot be understood" is a grammatically sound and frequently used expression to convey a lack of comprehensibility. As Ludwig AI confirms, it is appropriate in various contexts, particularly in news, academic, and scientific writing. While effective, it's important to use it judiciously, considering whether active voice constructions might offer greater clarity. Related phrases like "is incomprehensible" or "defies explanation" can provide alternative ways to express similar ideas. To conclude, "cannot be understood" is valuable in communicating that something exceeds the grasp of understanding.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is incomprehensible
Replaces 'cannot be understood' with a single adjective emphasizing the lack of comprehensibility.
is beyond comprehension
Highlights that something exceeds the limits of understanding.
is unintelligible
Focuses on the quality of not being able to be understood, often due to the way it's expressed.
escapes understanding
Highlights that something avoids or is missed by comprehension.
defies explanation
Indicates that something is so unusual it cannot be explained.
remains a mystery
Suggests the subject is unsolved or unknown, moving from lack of comprehension to a state of enigma.
is enigmatic
Emphasizes the mysterious and puzzling nature of something.
is not clear
A simpler way of saying something lacks clarity.
is not discernible
Indicates that something is not easily detected or recognized, and thus cannot be understood.
is a closed book
Implies something is secretive and difficult to get to know or understand.
FAQs
How can I rephrase "cannot be understood" to sound more formal?
For a more formal tone, consider alternatives like "is incomprehensible", "is beyond comprehension", or "defies explanation". These options maintain a similar meaning while elevating the language's formality.
What's a simpler way to say "cannot be understood"?
If you need a simpler alternative, you could use phrases like "is not clear" or "is unintelligible". These options convey the same core meaning but in a more accessible way.
Is it ever incorrect to use "cannot be understood"?
While grammatically correct, "cannot be understood" can sound awkward in certain contexts. Ensure the surrounding sentence structure is clear and direct. Overusing passive voice can sometimes weaken the impact of your writing. If the sentence is still clunky, try restructuring it with an active voice.
Which is the difference between "cannot be understood" and "cannot be explained"?
"Cannot be understood" implies a lack of comprehension, while "cannot be explained" suggests an inability to provide a rational reason or cause. Understanding focuses on grasping the meaning, while explaining centers on providing an account or justification.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested