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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
is deficient
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is deficient" is correct and usable in written English.
It can be used to describe something that is lacking or insufficient in some way. Example: "The report is deficient in providing adequate evidence to support its claims."
✓ Grammatically correct
News & Media
Academia
Science
Encyclopedias
Alternative expressions(20)
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
60 human-written examples
The amount of deficiency when a cash flow or capital item is deficient.
Academia
India is deficient in both.
News & Media
Not, "McCain's judgment is deficient".
News & Media
Even Saddam is deficient here.
News & Media
Without Spock, Kirk is deficient.
News & Media
O.K.? Pakistan is deficient of both.
News & Media
But it is deficient in two respects.
News & Media
Our city is deficient in charm.
News & Media
This is not to say that TaxCut is deficient.
News & Media
In this respect, de Gaulle's Fifth Republic is deficient.
News & Media
(Rogers Declaration, 4) However, Rogers' declaration is deficient.
Academia
Expert writing Tips
Best practice
When using "is deficient", clearly specify what the subject is lacking. This provides context and avoids ambiguity for the reader.
Common error
Avoid using "is deficient" without providing specific details about the deficiency. For example, instead of saying "the product is deficient", specify what aspects of the product are lacking or inadequate.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is deficient" functions as an adjective phrase. It is used to describe a noun as lacking something essential or adequate. Ludwig AI confirms its usability in describing inadequacy.
Frequent in
News & Media
38%
Academia
28%
Science
22%
Less common in
Encyclopedias
10%
Formal & Business
2%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "is deficient" is a grammatically correct and widely used expression to indicate that something lacks an essential quality or quantity. As Ludwig AI confirms, it is applicable across a range of contexts, from formal academic papers to news reports. The phrase is most frequently encountered in News & Media, Academia, and Science contexts. Alternatives such as "is lacking" or "is inadequate" can be used depending on the desired nuance. When using "is deficient", it is important to specify what the subject is lacking to provide clarity and avoid ambiguity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is lacking
Replaces "deficient" with a more straightforward term for absence.
is inadequate
Indicates insufficiency, similar to "deficient" but potentially less formal.
is insufficient
Emphasizes a lack of necessary amount or degree.
is wanting
A more literary or archaic way of saying "is lacking".
is subpar
Suggests performance or quality below an acceptable standard.
falls short
Indicates a failure to reach a required level or expectation.
is compromised
Suggests impairment or weakening, implying a deficiency in function.
is flawed
Highlights imperfections or defects that cause a deficiency.
is imperfect
Indicates a state of not being complete or ideal, implying some deficiency.
is impaired
Similar to compromised, but often used in contexts of physical or mental ability.
FAQs
How do you use "is deficient" in a sentence?
Use "is deficient" to describe something that lacks an essential quality or quantity. For example, "The soil is deficient in nutrients" or "The plan is deficient in detail".
What's a synonym for "is deficient"?
Alternatives to "is deficient" include "is lacking", "is inadequate", or "is insufficient", depending on the context.
Is it better to say "is deficient in" or "is deficient of"?
"Is deficient in" is the more commonly accepted and grammatically correct construction. "Is deficient of" is less frequent and may sound awkward to some readers.
What is the difference between "is deficient" and "is defective"?
"Is deficient" implies something is lacking or incomplete, whereas "is defective" suggests something has a flaw or malfunction. A product that "is defective" might not function correctly, while something that "is deficient" simply lacks something necessary.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested