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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
which is concerning
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'which is concerning' is correct and usable in written English.
You can use this phrase to express worry or concern about something. For example: "The rising costs of healthcare, which is concerning for many families, is an important issue to discuss."
✓ Grammatically correct
News & Media
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
30 human-written examples
This is because it isn't appropriately designed to meet their needs, which is concerning.
News & Media
That isn't likely to be the opposition led by Corbyn, which is concerning for taxpayers.
News & Media
Rather than taking on debt, the bottom 50% could therefore be funding their consumption by drawing down their limited assets, which is concerning as it makes them more vulnerable in the long run.
News & Media
"There is no doubt terrorism is awful and unacceptable but the linking of terrorist activity to an end of allegiance takes us back to an antiquated and feudal notion of membership of the community which is concerning for a multicultural society because only dual citizens are effected".
News & Media
Not only does the experience surprise and annoy web users, it can also consume power and use data – which is concerning for mobile users, in particular.
News & Media
This book is a well-known TCM monograph which is concerning ADME/T (Absorption, Distribution, Metabolism, Excretion and Toxicity) of CHM active ingredients in China.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
29 human-written examples
Osborn, president of the Josiah Macy Jr. Foundation, which is concerned with the education of doctors, agreed.
News & Media
It follows that social science, which is concerned only with human beings, is impossible.
Encyclopedias
For instance, why must the Bureau of Alcohol , Tobacco and Firearms which is concerned about illegal weapons, be kept in the Treasury Department?
News & Media
Mergers among the six have been blocked by the government, which is concerned about the loss of consumer choice.
News & Media
The Presbyterian Church (U.S.A). is governed by a constitution comprising two volumes: the Book of Confessions, which is concerned with matters of doctrine, and the Book of Order, which is concerned with matters of church organization, membership, and government.
Encyclopedias
Expert writing Tips
Best practice
Use "which is concerning" to smoothly introduce a point of worry or significance within a longer sentence, maintaining a formal tone. For example, "The lack of funding, which is concerning, could impact the project's success."
Common error
Avoid using "that is concerning" when referring to a non-restrictive clause. "Which" introduces non-essential information, while "that" is used for essential information. For instance, prefer "The decline in sales, which is concerning, may lead to layoffs" over "The decline in sales, that is concerning, may lead to layoffs".
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which is concerning" functions as a non-restrictive relative clause, adding extra information about a preceding clause or noun phrase. Ludwig AI confirms its correct usage, appearing frequently in various contexts to express worry or apprehension.
Frequent in
Science
43%
News & Media
40%
Formal & Business
7%
Less common in
Encyclopedias
2%
Reference
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "which is concerning" is a versatile phrase used to express worry or highlight significance within a sentence. Ludwig AI confirms that it's grammatically sound and widely used. It functions as a non-restrictive relative clause, primarily found in scientific and news contexts, with a neutral register. While alternatives like "that raises concerns" exist, "which is concerning" provides a smooth way to introduce a point of worry. Remember to use "which" for non-essential information and avoid common errors like using "that" instead.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that raises concerns
Replaces "which is concerning" with a more direct statement of raising concerns, emphasizing the action rather than a state of being.
that is worrisome
Substitutes "concerning" with "worrisome", offering a slightly stronger sense of anxiety.
that is troubling
Offers a softer tone than "alarming", suggesting something is causing unease or difficulty.
that is alarming
Replaces "concerning" with "alarming", indicating a higher degree of urgency or potential danger.
that is disquieting
Similar to "troubling" but with a slightly more formal and subtle nuance of unease.
which gives cause for concern
Rephrases the sentence to highlight the reason for worry, making the cause more prominent.
this is grounds for concern
Emphasizes that there are valid reasons to be concerned about something.
this is a worrying situation
Changes the phrase to describe the overall situation as worrying, rather than focusing on a specific detail.
it's a cause for worry
Uses a more direct and personal tone, explicitly stating that something is causing worry.
that is regrettable
Shifts the focus to the unfortunate nature of the situation rather than directly expressing concern.
FAQs
How can I use "which is concerning" in a sentence?
Use "which is concerning" to introduce a clause that expresses worry or apprehension about a preceding statement. For example, "The data shows a decline in student performance, "which is concerning" given our commitment to academic excellence."
What are some alternatives to saying "which is concerning"?
You can use alternatives such as "that raises concerns", "that is worrisome", or "that is alarming" depending on the level of concern you want to express.
Is "which is concerning" formal or informal?
"Which is concerning" is generally considered neutral to formal and suitable for academic writing, news reports, and professional communications. Less formal options might include "that's worrying" or "that's a problem".
What's the difference between "which is concerning" and "what is concerning"?
"Which is concerning" refers back to a specific situation or piece of information already mentioned, while "what is concerning" introduces a general area of worry or uncertainty. For example, "The budget cuts, "which is concerning", will affect services" versus "What is concerning is the lack of transparency in the decision-making process."
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested