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
a key deficiency
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a key deficiency" is correct and usable in written English.
It can be used to highlight an important lack or shortcoming in a particular context, such as a report or analysis. Example: "The study revealed a key deficiency in the current educational curriculum that needs to be addressed."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(2)
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
5 human-written examples
Such a shift would address a key deficiency of NCLB and would be responsive to the concerns of educators regarding personnel evaluation.
News & Media
This speaks to a key deficiency of the TAM, being its focus on cognition at the expense of consumer emotion.
In three patients with treatment resistant depression implanted with bilateral DBS electrodes in the nucleus accumbens, significant changes of brain metabolism were observed in frontostriatal networks, associated with improvements of anhedonia which is a key deficiency in refractory major depression [18].
Science
The institute indicated that: a) forward-thinking, creative and innovative solutions are absolutely essential for the future of our health care system; and b) the lack of integration of services has been identified as a key deficiency in the Canadian health care system.
Science
However, a key deficiency of these approaches is that they rely heavily on high-throughput biological data like microarrays that only capture average behaviour of the genes and proteins in a large cell population from, e.g. a cell culture, a dissected tissue or even a homogenized whole animal.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
We speculate that decreased maternal COMT activity would be beneficial by increasing the production of 2-ME by the placenta and that a placental loss of COMT activity is the key deficiency that contributes to the development of preeclampsia.
Science
And Alexa's key deficiency in the market right now is its inability to execute searches and answer questions.
News & Media
The key deficiency in process elements found in the tools reviewed with reference to the AMP principles related to the timeframes and level of resourcing required to achieve determined outcomes.
Science
Consistent with previous reports from other jurisdictions [ 2, 20, 28], this study has identified non-availability of expertise and lack of a functional referral system as key deficiencies within the exiting PHC system, exacerbated by limited interconnections between BHU physicians and those providing higher, specialist levels of care.
These identified four key deficiencies and for each a program was implemented to resolve with the help of the ICLNs: 1. Help your doctors for excellence in Hand Hygiene: ICLNs reverse the low compliance amongst doctors, the accompanying nurses would squirt alcohol hand rub for them during ward rounds.
Our examination found key deficiencies in New York's inspection system.
News & Media
Expert writing Tips
Best practice
Use "a key deficiency" to pinpoint a specific, important area needing improvement or correction in reports, analyses, or evaluations. Ensure the context clearly indicates what is lacking and why it matters.
Common error
Avoid using "a key deficiency" for minor issues. Reserve it for substantial shortcomings that have a considerable impact.
Source & Trust
86%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a key deficiency" functions as a noun phrase, typically serving as the subject or object of a sentence. Ludwig AI confirms its correct and usable nature, highlighting its role in identifying significant shortcomings. It is used to pinpoint important areas that require attention or improvement.
Frequent in
Science
60%
News & Media
20%
Formal & Business
20%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "a key deficiency" is a grammatically sound phrase used to emphasize a significant shortcoming or lack. Ludwig AI validates its correctness and utility across various formal contexts like science, news, and business. While not frequently used, it serves to pinpoint specific areas needing improvement. Alternatives like "a major shortcoming" or "a significant weakness" can be used depending on the context. When employing this phrase, ensure it accurately reflects the importance of the deficiency and avoids overstatement. Use this phrase to draw attention to important areas and prompt corrective action.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a major shortcoming
Replaces "deficiency" with "shortcoming", emphasizing the inadequacy.
a significant weakness
Substitutes "deficiency" with "weakness", focusing on the area of vulnerability.
a critical flaw
Uses "flaw" instead of "deficiency", indicating a more serious defect.
a primary inadequacy
Replaces "deficiency" with "inadequacy", highlighting the insufficiency.
a notable limitation
Substitutes "deficiency" with "limitation", focusing on the restrictive aspect.
a central failing
Uses "failing" instead of "deficiency", emphasizing the lack of success.
a crucial gap
Replaces "deficiency" with "gap", focusing on the missing element.
a vital absence
Substitutes "deficiency" with "absence", highlighting the lack of something essential.
a fundamental deficit
Uses "deficit" instead of "deficiency", emphasizing the shortage or lack.
a core imperfection
Replaces "deficiency" with "imperfection", focusing on the flawed nature.
FAQs
How can I use "a key deficiency" in a sentence?
You can use "a key deficiency" to highlight a significant shortcoming or lack in something. For example: "The report identified "a key deficiency" in the current security protocols."
What are some alternatives to "a key deficiency"?
Alternatives include "a major shortcoming", "a significant weakness", or "a critical flaw". The best choice depends on the specific context.
Is it better to say "a key deficiency" or "the key deficiency"?
Both are grammatically correct, but "a key deficiency" is used when you are identifying one of several key deficiencies, whereas "the key deficiency" is used when you are referring to the single most important deficiency.
What's the difference between "a key deficiency" and "a minor deficiency"?
"A key deficiency" refers to a significant and important shortcoming, while "a minor deficiency" refers to a less important or less impactful shortcoming.
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
4.1/5
Expert rating
Real-world application tested