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
of greatest concern
Grammar usage guide and real-world examplesUSAGE SUMMARY
"of greatest concern" is correct and commonly used in written English.
It is used to describe something that is the most important or worrying aspect of a situation. Example: The rising sea levels are of greatest concern for coastal communities.
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
of large concern
foremost in one's thoughts
primary importance
clear in my mind
spontaneous
front of mind
of greater concern
imprinted on my memory
a major worry
imprinted on my brain
front of kids
forms of mind
of utmost concern
front of is
of substantial concern
at the forefront
of most concern
recently experienced
stays with me
vivid in my imagination
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
59 human-written examples
The possible externality of greatest concern may be national defense.
News & Media
Of greatest concern was consumption of junk foods.
News & Media
Imported foods are the focus of greatest concern.
News & Media
"We identified the four species of greatest concern".
News & Media
We will make funds available for similar inspections in areas of greatest concern," he said.
News & Media
However, American self-sufficiency in oil is of greatest concern to the European Union.
News & Media
Among the former, smoking prevention and cessation, alcoholism, osteoporosis, and heart disease were of greatest concern.
Encyclopedias
The mycotoxins of greatest concern are aflatoxins, which can infect nuts, peanuts, corn, and wheat.
Encyclopedias
Of greatest concern to Manis was that the patient was getting worse.
News & Media
The countries of greatest concern include Angola, Cameroon, Chad, Colombia, Ecuador, Equatorial Guinea, Indonesia and Nigeria.
News & Media
Perhaps the area of greatest concern is Hartford's murder rate, which has soared this year.
News & Media
Expert writing Tips
Best practice
When using "of greatest concern", clearly identify the subject or situation to which the concern applies to ensure clarity and context for your audience.
Common error
Avoid using "of greatest concern" repeatedly within a single piece of writing. Vary your language by using synonyms like "primary concern" or "most pressing issue" to maintain reader engagement and avoid sounding repetitive.
Source & Trust
83%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "of greatest concern" functions as a prepositional phrase that modifies a noun or clause, indicating the most significant area of worry or attention. Ludwig's examples show it frequently introduces the subject of primary focus within a given context.
Frequent in
Science
33%
News & Media
32%
Formal & Business
7%
Less common in
Encyclopedias
3%
Wiki
1%
Reference
0%
Ludwig's WRAP-UP
In summary, "of greatest concern" is a prepositional phrase used to emphasize the paramount importance or worry associated with a particular issue. It is grammatically correct and, according to Ludwig, commonly used in written English across a variety of contexts including science, news media, and formal business. While "of greatest concern" is most appropriate for formal and scientific writing, remember to vary your language to avoid repetition. Consider alternatives such as "primary concern" or "most pressing issue". Be sure to always provide context to ensure clarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
primary concern
Simplifies the phrase by removing the superlative "greatest".
central issue
Highlights the centrality of the issue in a discussion or situation.
most worrying
Focuses on the worrying aspect rather than the level of importance.
major apprehension
Replaces "concern" with a more formal synonym, "apprehension".
most pressing issue
Highlights the urgency of the concern.
main worry
Uses more informal language, replacing "concern" with "worry".
paramount importance
Emphasizes the high level of importance, rather than worry.
chief anxiety
Uses "anxiety" to convey worry or unease instead of concern.
top priority
Shifts the focus to importance and action rather than worry.
foremost consideration
Focuses on the act of considering something as the most important thing.
FAQs
How can I use "of greatest concern" in a sentence?
You can use "of greatest concern" to highlight the most worrying or important aspect of a situation. For example, "The environmental impact of the new factory is of greatest concern to local residents."
What are some alternatives to "of greatest concern"?
Alternatives include "primary concern", "main worry", or "top priority" depending on the context.
Is it more appropriate to use "of greatest concern" or "biggest concern"?
"Of greatest concern" is generally more formal and suitable for academic or professional writing, while "biggest concern" is more informal and appropriate for casual conversation or less formal contexts.
How does "of greatest concern" differ from "of great concern"?
"Of greatest concern" emphasizes that something is the most important or worrying, whereas "of great concern" simply indicates that something is very important or worrying but not necessarily the most significant.
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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
83%
Authority and reliability
4.6/5
Expert rating
Real-world application tested