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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
knowledgeable on this topic
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'knowledgeable on this topic' is correct and acceptable in written English.
You can use it when referring to someone who has a good understanding of a certain topic. For example: "John is highly knowledgeable on this topic, so you should ask him for help."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(14)
familiar with this topic
an expert in this topic
proficient in this topic
conversant with this topic
acquainted with this topic
knowledgeable on this subject
professional on this topic
trained on this topic
knowledge sharing on this topic
mutual learning
information dissemination
knowledgeable about this subject
familiar with this subject
well-versed in this area
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
59 human-written examples
Previous studies have touched on this topic.
Science
This question is easier to answer if you are knowledgeable on the topic or proficient in the topic area.
Wiki
H8: The more parents search for information about infectious diseases and vaccinations, the more they perceive themselves as knowledgeable on the topic.
Science
If you don't know much about a subject, it's as easy as hopping on the computer and typing the subject in Google, or going to a library and finding a book on it, or asking somebody knowledgeable on the topic for their view on it.
Wiki
I'm not saying I'm very good at either but I am, at the very least, knowledgeable on the topics.
News & Media
Talk to people who are knowledgeable on your topic.
Wiki
In order to undertake in this endeavor, we must first become knowledgeable on this contemporary civil rights issue.
News & Media
A new graphic feature on the last page, "The Bluffer's Guide," will tell readers how to sound as if they are knowledgeable on a current topic, whether they are or not.
News & Media
He isn't restrained on this topic.
News & Media
Share your thoughts on this topic below.
News & Media
On this topic Corbyn is a Blairite.
News & Media
Expert writing Tips
Best practice
When using the phrase "knowledgeable on this topic", ensure that the context clearly defines the scope of the topic. This helps avoid ambiguity and ensures the audience understands the specific area of expertise being referred to.
Common error
Avoid assuming the audience understands the breadth of the "topic". Be specific or provide clarifying information to prevent misinterpretations regarding the extent of knowledge.
Source & Trust
78%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "knowledgeable on this topic" functions as an adjectival phrase, modifying a noun (implied or stated) to describe someone who possesses a good understanding of a particular subject. Ludwig confirms its validity.
Frequent in
Science
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News & Media
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Formal & Business
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Less common in
Science
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News & Media
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Formal & Business
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Ludwig's WRAP-UP
The phrase "knowledgeable on this topic" is a grammatically correct and widely understood way to describe someone with a good understanding of a specific subject. While Ludwig confirms its validity, alternatives such as "well-informed about this topic" or "an expert in this topic" may be more precise depending on the context. The phrase's versatility allows it to be used in various settings, though specificity in defining the "topic" is crucial for clarity. While sources do not currently provide any direct usage examples, the phrase appears to be suitable for a wide range of formal and informal communications.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
well-informed about this topic
Replaces "knowledgeable" with "well-informed", emphasizing the possession of information.
highly informed on this topic
Replaces "knowledgeable" with "highly informed", intensifying the level of awareness.
an expert in this topic
Rephrases to highlight expertise, using "expert" instead of "knowledgeable".
has expertise in this topic
Shifts the sentence structure to emphasize the possession of expertise.
familiar with this topic
Uses "familiar" instead of "knowledgeable", suggesting a general understanding rather than deep expertise.
proficient in this topic
Uses "proficient" suggesting competence and skill in the area.
well-versed in this topic
Uses "well-versed" to convey a comprehensive understanding.
possesses deep knowledge of this topic
Highlights the depth of understanding using "deep knowledge".
conversant with this topic
Employs "conversant", indicating an ability to discuss the topic intelligently.
acquainted with this topic
Substitutes "knowledgeable" with "acquainted", implying a basic level of understanding.
FAQs
What are some alternatives to "knowledgeable on this topic"?
You can use alternatives like "well-informed about this topic", "familiar with this topic", or "an expert in this topic" depending on the context.
How does "knowledgeable on this topic" differ from "an expert in this topic"?
"Knowledgeable on this topic" implies a good understanding, while "an expert in this topic" suggests a higher level of skill and experience.
Is it grammatically correct to say "knowledgeable on this topic"?
Yes, it is grammatically correct. The structure "knowledgeable on" is acceptable, though "knowledgeable about" might be more common. Ludwig confirms that this is valid.
In what contexts is "knowledgeable on this topic" most appropriate?
The phrase is suitable for formal and informal contexts when describing someone who has a good understanding of a particular subject. It is commonly used in news media, science, and business.
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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
78%
Authority and reliability
4.3/5
Expert rating
Real-world application tested