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
did not comprehend
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "did not comprehend" is correct and usable in written English.
It can be used when expressing that someone failed to understand something. Example: "Despite the detailed explanation, she did not comprehend the complex theory presented in the lecture."
✓ Grammatically correct
News & Media
Academia
Science
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
54 human-written examples
"Kipple-ized?" She did not comprehend.
News & Media
Why have I taken blame for what I did not comprehend?
News & Media
She was immersed in the writing of a book that she did not comprehend.
News & Media
On the night, I did not comprehend events fully because I was in the dressing room.
News & Media
I did not comprehend that the whole banking system would collapse like a house of cards.
News & Media
Dana did not comprehend what Lincoln's friends well understood: Storytelling was at the core of the president's character.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
6 human-written examples
Marie didn't comprehend for a moment.
News & Media
I didn't comprehend, of course.
News & Media
Bobby didn't comprehend his mother's death.
News & Media
They didn't comprehend China's growing power and confidence.
News & Media
She didn't comprehend the terror of the disease.
News & Media
Expert writing Tips
Best practice
Use "did not comprehend" when you want to express a failure to fully grasp a concept, idea, or situation, especially when dealing with complex or abstract matters. This phrase is more formal than "did not understand".
Common error
Avoid using "did not comprehend" in situations where a simpler phrase like "did not understand" would suffice. Overusing formal language can make your writing sound stilted or unnatural.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "did not comprehend" functions as a negative verb phrase, indicating a lack of understanding or failure to grasp something. As confirmed by Ludwig AI, it's a usable and grammatically correct expression.
Frequent in
News & Media
53%
Academia
20%
Science
18%
Less common in
Encyclopedias
3%
Wiki
3%
Formal & Business
3%
Ludwig's WRAP-UP
The phrase "did not comprehend" effectively conveys a lack of understanding, functioning as a negative verb phrase. As Ludwig AI confirms, it's grammatically sound and appropriate for various contexts. While "did not comprehend" is more formal than simpler alternatives like ""did not understand"", it is useful when you aim to express a failure to grasp complex or abstract concepts. Analysis of usage patterns reveals it is commonly found in news, academic and scientific publications.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
did not understand
This is the most direct synonym, replacing "comprehend" with the more common "understand".
failed to grasp
This alternative uses "grasp" to convey understanding, suggesting a failure to seize or understand an idea.
was unable to understand
Emphasizes the inability to achieve understanding.
did not get
A more informal way of saying someone didn't understand something.
could not fathom
Indicates a deeper level of incomprehension, suggesting something is difficult to imagine or believe.
missed the point of
Indicates a failure to understand the central idea or purpose.
was oblivious to
Highlights a lack of awareness or consciousness regarding something.
remained ignorant of
Focuses on the state of being uninformed or lacking knowledge.
did not appreciate
Suggests a lack of understanding or recognition of the importance or value of something.
was blind to
Implies a lack of perception or insight, suggesting something was obvious but not seen.
FAQs
What does "did not comprehend" mean?
The phrase "did not comprehend" means that someone failed to understand something fully. It suggests a lack of complete understanding or grasp of a concept, idea, or situation.
How can I use "did not comprehend" in a sentence?
You can use "did not comprehend" to indicate a lack of understanding, as in: "Despite the detailed explanation, she "did not understand" the complex theory."
What's the difference between "did not comprehend" and ""did not understand""?
"Did not comprehend" is more formal than ""did not understand"". While both express a lack of understanding, "did not comprehend" is often used in more serious or formal contexts.
What are some alternatives to "did not comprehend"?
Alternatives include "failed to grasp", "could not fathom", or simply ""did not understand"", depending on the context and desired level of formality.
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested