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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
deficient in something
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "deficient in something" is correct and usable in written English.
It can be used to describe a lack or insufficiency of a particular quality, skill, or resource. Example: "The report indicated that the team was deficient in necessary technical skills, which hindered their progress on the project."
✓ Grammatically correct
News & Media
Science
Wiki
Encyclopedias
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
60 human-written examples
If there is something deficient in our political system, or if we are not happy with the political leaders we have, it is up to use to resolve those problems.
News & Media
Notification Center – iOS has always been deficient in the notifications department, something Android hit hard on from its first release.
News & Media
"But the implication that there was something deficient in our procedures just is not correct". Ray said the valves that failed were not properly designed for the purpose they served.
News & Media
In the case of an Orthodox Jewish man asking a woman to change seats, it is not that the man is asserting that there is something deficient in him the effects of which will be alleviated by the woman moving, but rather exactly the opposite: he believes that there is something deficient about the woman that may interfere with his purity if he sits next to her.
News & Media
It's mostly just to distract themselves and their friends from something that is deficient in their lives.
Wiki
As for city politics, Ford acted in disgusting fashion over the troubles of New York, and carried on as if there were something personally corrupt and deficient in the soul of New Yorkers themselves.
News & Media
But Ferguson's standing job is to attack the run, something the defense was glaringly deficient in during last season, even after it stabilized at midseason.
News & Media
And as we spend more of our time than ever online – communicating, working, shopping and playing virtually – knitting offers something so many of us are deficient in: a connection to the here and now.
News & Media
It is unknown whether certain nutrients are particularly deficient in oedematous malnutrition, but if so, it could be something usually provided in sufficient amounts in breast milk.
Science
That's symptomatic of a production that seems to have lost something in crossing the Atlantic and is deficient in that spark that turns respect into rapture.
News & Media
Thus the upcoming verticals may look radically different than the flight category but all will follow basic principles of logic, something Goldstein and Huffman say has been largely deficient in this industry.
News & Media
Expert writing Tips
Best practice
When using "deficient in something", ensure that the 'something' is clearly defined and relevant to the context. This helps to avoid ambiguity and ensures that the meaning is easily understood.
Common error
While "deficient in something" is grammatically correct, it can sound overly formal in casual conversation. Consider using simpler alternatives like "lacking" or "short on" in informal settings.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "deficient in something" functions as an adjective phrase followed by a preposition. It modifies a noun or pronoun by describing a state of lacking or insufficiency. Ludwig confirms that the phrase is grammatically correct and widely used.
Frequent in
News & Media
32%
Science
28%
Wiki
15%
Less common in
Encyclopedias
10%
Formal & Business
8%
Reference
7%
Ludwig's WRAP-UP
In summary, the phrase "deficient in something" is a grammatically correct and widely used expression to describe a lack or insufficiency in a particular area. According to Ludwig, it's commonly found in news, scientific, and formal contexts, maintaining a neutral to formal tone. When writing, ensure the 'something' is well-defined to avoid ambiguity. While versatile, consider using less formal alternatives like "lacking" in casual settings. This phrase serves to identify shortcomings and areas needing improvement. Ludwig's analysis underscores the phrase's validity and broad applicability across diverse sources.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Lacking in something
Emphasizes the absence of a particular quality or element.
Insufficient in something
Highlights that there is not enough of something.
Deficient with respect to something
More formal and specific, indicating a particular area of deficiency.
Falling short in something
Suggests a failure to reach a required standard or level.
Weak in something
Focuses on the inadequacy or frailty in a specific area.
Inadequate in something
Similar to insufficient, but can imply a more fundamental lack.
Poor in something
Indicates a low quality or limited amount of something.
Wanting in something
A more literary or old-fashioned way of saying lacking.
Underdeveloped in something
Suggests that a particular aspect is not as advanced or mature as it should be.
Limited in something
Implies a restriction or constraint in a particular area.
FAQs
How can I use "deficient in something" in a sentence?
You can use "deficient in something" to indicate a lack or insufficiency. For example, "The study found that many children are "deficient in vitamin D"".
What are some alternatives to "deficient in something"?
Some alternatives include "lacking in something", "insufficient in something", or "falling short in something", depending on the specific context.
Is it better to say "deficient in" or "lacking in"?
Both "deficient in" and "lacking in" are correct, but "deficient in" tends to be more formal. Choose the phrase that best fits the tone of your writing.
What does it mean to be "deficient in" a skill?
To be "deficient in" a skill means that you do not have enough of that skill, or that your skill level is below what is required or expected. For instance, someone might be "deficient in communication skills".
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested