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
regrettably inadequate
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "regrettably inadequate" is correct and usable in written English.
It can be used to express disappointment or dissatisfaction with something that does not meet expectations or standards. Example: "The report was regrettably inadequate, failing to address the key issues we discussed in our meeting."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
lamentably deficient
woefully insufficient
deplorably lacking
a bit of a bummer
not been well
less than qualified
less than appropriate
less than optimum
not really well
not only well
imperfect
not very well
unsatisfactory
less than excellent
inadequate
not very good
not particularly well
inadequately
not ideal
left very well
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
2 human-written examples
The needs that Nicholas D. Kristof writes about are indeed pressing, and the response of the developed countries is regrettably inadequate to supply the food, water and medical care needed in many parts of the world.
News & Media
Despite the fact that the conclusions raised are rather superficial, and regrettably inadequate to the objective aimed in the first place after major revision, this manuscript could make an important contribution to Drosophila embryogenesis and, more general, to homeostasis of animal development.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
Regrettably, they exhibited inadequate signal levels.
Science
Regrettably though, this knowledge remains inadequate, a view expressed in a previous review on a related subject [ 2].
Science
9, 14– 17, 33 Regrettably, government expenditure on health in Nigeria and other Sub-Saharan Africa has been inadequate and inequitable.
Regrettably, because drug users' access to and use of medical care is often inadequate, sometimes as a result of the discrimination they experience from physicians and other clinicians [ 16- 18], their exposure to accurate HCV information is generally limited.
Science
Regrettably, similar comparison could not be performed for patients with ERN tumours, because of inadequate number of such patients receiving TaRT or Quad.
Science
Regrettably, to the rank and file Republican voters who chose him in the primaries, Trump's inadequate resume will make no difference.
News & Media
Regrettably, the anticipated results were not attained due to lack of proper competencies of people, resulting from inadequate education and limited knowledge spread.
Regrettably not.
News & Media
Inadequate, inadequate, inadequate.
News & Media
Expert writing Tips
Best practice
Use "regrettably inadequate" to express a sense of disappointment combined with a deficiency in quality or quantity. It often appears in formal contexts to describe a situation that falls short of expectations.
Common error
While "regrettably inadequate" is a valid phrase, avoid using it too frequently in your writing. Vary your vocabulary by using synonyms like "sadly insufficient" or "unfortunately lacking" to keep your text engaging.
Source & Trust
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "regrettably inadequate" functions as an intensifier and qualifier. The adverb "regrettably" modifies the adjective "inadequate", expressing disappointment or regret about the insufficiency. Ludwig AI indicates that the phrase is grammatically correct.
Frequent in
News & Media
50%
Science
50%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "regrettably inadequate" serves to express disappointment regarding a deficiency. According to Ludwig AI, it is grammatically correct and primarily used in News & Media and Scientific contexts. While not exceedingly common, understanding its nuances and potential alternatives, such as "sadly insufficient" or "unfortunately lacking", can enhance the precision and impact of your writing. Although its occurrence is rare, its proper application adds a layer of sophistication to formal and professional communications.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
regrettably insufficient
Maintains "regrettably" but substitutes "inadequate" with "insufficient", offering a minor variation in vocabulary.
sadly insufficient
Replaces "regrettably" with "sadly", maintaining the sense of disappointment, and "inadequate" with "insufficient", which has a similar meaning.
grievously inadequate
Replaces "regrettably" with "grievously", indicating severe regret, while retaining "inadequate".
unfortunately lacking
Uses "unfortunately" instead of "regrettably" and "lacking" in place of "inadequate", both expressing a negative assessment.
disappointingly deficient
Employs "disappointingly" and "deficient" to replace "regrettably" and "inadequate" respectively, adding a stronger sense of disappointment.
unacceptably insufficient
Changes "regrettably" to "unacceptably", highlighting the lack of approval, and substitutes "inadequate" with "insufficient".
lamentably deficient
Substitutes "regrettably" with "lamentably", which carries a stronger emotional tone, and replaces "inadequate" with "deficient".
regrettably falling short
Replaces "inadequate" with the phrase "falling short", which expresses a similar meaning of not meeting the required standard.
woefully insufficient
Replaces "regrettably" with "woefully", indicating a greater degree of inadequacy, and substitutes "inadequate" with "insufficient".
deplorably lacking
Uses "deplorably" to emphasize the regrettable nature and "lacking" to express the inadequacy.
FAQs
How can I use "regrettably inadequate" in a sentence?
You can use "regrettably inadequate" to express disappointment about something that doesn't meet the required standard. For example, "The funding for the project was "regrettably inadequate", hindering its progress".
What are some alternatives to "regrettably inadequate"?
You can use alternatives like "sadly insufficient", "unfortunately lacking", or "disappointingly deficient" depending on the specific nuance you want to convey. Each alternative emphasizes a slightly different aspect of the disappointment or deficiency.
In what contexts is it appropriate to use "regrettably inadequate"?
"Regrettably inadequate" is suitable for formal and professional contexts where you need to express disappointment about a deficiency in a polite yet direct manner. It's commonly found in reports, reviews, and formal correspondence.
How does the phrase "regrettably inadequate" differ from "simply inadequate"?
"Regrettably inadequate" adds an element of disappointment or regret to the statement, while "simply inadequate" is a more neutral assessment of deficiency. The former conveys a stronger emotional tone and suggests that the inadequacy is a cause for concern.
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
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested