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 identify
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "impossible to identify" is correct and usable in written English.
You can use it when describing something that cannot be recognized or determined, often in contexts involving ambiguity or uncertainty. Example: "The fingerprints found at the crime scene were smudged and impossible to identify."
✓ Grammatically correct
News & Media
Science
Encyclopedias
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
It was impossible to identify them".
News & Media
The homeless are usually impossible to identify.
News & Media
The few dangerous ones are impossible to identify.
News & Media
Chisholm today is a different woman, impossible to identify as the binge eater of yore.
News & Media
The plot was incomprehensible and the new spokescharacter was impossible to identify.
News & Media
Given how little data about pensions is public, it is almost impossible to identify problems.
News & Media
Chinese kimchi is cheaper and, for most diners, impossible to identify as a "fraud".
News & Media
Comedy begins from a standpoint of reason, without reason it's impossible to identify what's absurd.
News & Media
For Colombians, he said, it was impossible to identify with the narrative.
News & Media
But it's almost impossible to identify who exactly will be getting this money.
News & Media
In such a context it's impossible to identify what one particular person contributed.
News & Media
Expert writing Tips
Best practice
When using "impossible to identify", ensure the context clearly explains why identification is not feasible. Provide specific reasons or conditions that contribute to the impossibility.
Common error
Avoid using "impossible to identify" when something is merely difficult to identify. Reserve the phrase for situations where identification is genuinely beyond current capabilities or available information.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "impossible to identify" functions as an adjective phrase modifying a noun or pronoun. It describes something that cannot be recognized or determined. As Ludwig AI confirms, it's a correct and usable phrase.
Frequent in
News & Media
41%
Science
46%
Encyclopedias
2%
Less common in
Formal & Business
0%
Reference
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "impossible to identify" is a grammatically sound and frequently used phrase that describes something that cannot be recognized or determined. Ludwig AI confirms its correct usage. It's commonly found in news, media, and scientific contexts, maintaining a neutral register. When using this phrase, ensure that the impossibility is genuine and clearly justified. Alternatives such as "unable to identify" or "difficult to identify" can be used to express similar meanings with subtle differences in emphasis.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
not possible to identify
Simplifies the phrase by using "not possible" instead of "impossible".
unable to identify
Changes the structure to use "unable", focusing on a lack of ability to identify.
unfeasible to identify
Replaces "impossible" with "unfeasible", suggesting that identification is not practically viable.
infeasible to identify
Replaces "impossible" with "infeasible", indicating that identification is not realistically achievable.
impractical to identify
Replaces "impossible" with "impractical", suggesting that identification is theoretically possible but not sensible.
no way to identify
Expresses the impossibility of identification by stating there is "no way".
impossible to pinpoint
Substitutes "identify" with "pinpoint", suggesting the need for precise determination.
impossible to ascertain
Replaces "identify" with "ascertain", implying a need to establish something definitively.
impossibility to identify
Nominalizes the phrase, focusing on the state of impossibility.
hard to identify
Softens the impossibility by using "hard" instead of "impossible", suggesting difficulty rather than complete impossibility.
FAQs
How can I use "impossible to identify" in a sentence?
You can use "impossible to identify" to describe something that cannot be recognized or determined. For example, "The handwriting was so faded that it was impossible to identify the author."
What are some alternatives to "impossible to identify"?
Alternatives include "unable to identify", "difficult to identify", or "not possible to identify", depending on the nuance you want to convey.
Is it correct to say "nearly impossible to identify"?
Yes, "nearly impossible to identify" is a correct and acceptable phrase. It suggests that identification is extremely difficult but not entirely beyond the realm of possibility.
What's the difference between "difficult to identify" and "impossible to identify"?
"Difficult to identify" implies that identification is challenging but potentially achievable. "Impossible to identify" means that identification is not feasible under the current circumstances.
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