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
dull of comprehension
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "dull of comprehension" is correct and usable in written English.
It can be used to describe someone who has difficulty understanding or grasping concepts. Example: "Despite his efforts to explain the theory, she remained dull of comprehension, unable to follow the discussion."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(3)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
Petare is an astounding maze of improvised brick cliff dwellings, many of them multistory, all of them beyond the dull comprehension of building codes.
News & Media
Marr's lack of comprehension was tangible.
News & Media
Matters of comprehension and artistic quality didn't concern us.
News & Media
'What you now say passes my poor powers of comprehension.
News & Media
"Saved—?" A species of comprehension settled into her eyes.
News & Media
Struggling to complete the full circuit of comprehension.
News & Media
What happened to her bends the limits of comprehension.
News & Media
An amazing emotional place of comprehension, reflection and enlightenment.
News & Media
The development of comprehension skills.
Science
The lexical bases of comprehension skill.
Science
Therefore methods of comprehension probing were utilised.
Science
Expert writing Tips
Best practice
When using "dull of comprehension", consider the context and audience. While grammatically correct, it may sound somewhat archaic or formal. Opt for simpler, more direct alternatives like "slow to understand" or "lacking understanding" in everyday conversation or less formal writing.
Common error
Avoid using "dull of comprehension" in informal contexts. Its somewhat formal tone might sound out of place or pretentious in casual conversation. Simpler alternatives are usually more effective.
Source & Trust
86%
Authority and reliability
3.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "dull of comprehension" functions as a descriptive adjective phrase, modifying a noun (often a person) to indicate a lack of understanding or slow intellectual processing. Ludwig's examples show it being used to describe a state of incomprehension.
Frequent in
News & Media
32%
Science
32%
Encyclopedias
11%
Less common in
Wiki
7%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "dull of comprehension" is a grammatically correct, though somewhat uncommon, way to describe someone who is slow to understand or lacks intellectual acuity. While Ludwig confirms its grammatical validity, simpler and more direct alternatives like "slow to understand" or "lacking understanding" are often preferred in contemporary usage, particularly in informal contexts. Therefore, consider your audience and the desired level of formality when choosing to use this phrase. Using this in news articles or encyclopedias is acceptable while using it in casual conversation may sound pretentious or old-fashioned.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Lacking in understanding
Emphasizes the absence of understanding.
Unable to grasp
Focuses on the inability to understand or comprehend.
Slow to understand
Focuses on the speed of understanding rather than the capacity.
Slow on the uptake
Similar to "not quick on the uptake", emphasizing slowness.
Struggling to comprehend
Highlights the effort required to understand, suggesting difficulty.
Intellectually limited
A more formal way of describing someone with reduced cognitive abilities.
Not quick on the uptake
Highlights the time it takes for someone to understand something.
Deficient in understanding
A more formal and academic way to express a lack of understanding.
Dense
Suggests a slowness or inability to grasp complex ideas.
Dim-witted
An informal and often derogatory term for someone unintelligent.
FAQs
How can I use "dull of comprehension" in a sentence?
You can use "dull of comprehension" to describe someone who has difficulty understanding something. For example: "Despite the teacher's explanation, the student remained "dull of comprehension"".
What's a simpler way to say "dull of comprehension"?
Alternatives include "slow to understand", "lacking in understanding", or simply "unable to grasp". The best choice depends on the context and desired level of formality.
Is "dull of comprehension" considered formal or informal?
"Dull of comprehension" leans towards the formal side. In casual conversation, it's generally better to use more common alternatives like "slow to understand" or "not very bright".
Is it correct to say "dull in comprehension" instead of "dull of comprehension"?
While "dull of comprehension" is the more established phrase, "dull in comprehension" is less common but still understandable. However, sticking with "dull of comprehension" is generally recommended for better clarity and adherence to standard usage.
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
86%
Authority and reliability
3.8/5
Expert rating
Real-world application tested