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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
that regrettably
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that regrettably" is correct and usable in written English.
It can be used to express disappointment or sorrow about a situation or outcome. Example: "The project was not completed on time, that regrettably affected our overall performance."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
50 human-written examples
"I fear that that, regrettably, may be occurring".
News & Media
But that, regrettably, is not what we get.
News & Media
Hix says he doesn't smoke weed; and also that, regrettably, he has to leave.
News & Media
Undeniably, he gives licence to his readers to employ similar epithets and views and he must therefore be held responsible for the violence that regrettably but inevitably follows from such expressions of hatred.
News & Media
Speaker of the House Paul Ryan hadn't managed to say much more than that "regrettably, the rollout was confusing," as if he might have erased the insult to American values with a PowerPoint presentation and a can-do smile.
News & Media
The Senate will judge Mrs. Clinton's deal in the context of outmoded rules that, regrettably, still permit members to accept advance payments for their books provided they fall within "usual and customary" industry patterns.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
8 human-written examples
It has an atmosphere of horror and madness that is regrettably muffled in later works.
News & Media
But if we come to that point, regrettably we would be prepared to do that".
News & Media
The project has now reached the point where that scenario, regrettably, became the most likely".
News & Media
I have a line that goes: "Regrettably, at the present moment, the episcopacy is wholly male.
News & Media
Its pension pot is only 32% funded, even on the highly optimistic assumptions about rates of return that are regrettably still standard for public-sector pension funds.
News & Media
Expert writing Tips
Best practice
When using "that regrettably" in formal writing, ensure it fits the overall tone and doesn't come across as overly emotional or informal.
Common error
While "that regrettably" is grammatically correct, overuse in casual conversations can sound stilted. Opt for more natural expressions like "unfortunately" or "sadly" in informal settings.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
That regrettably functions as an adverbial phrase, modifying the verb or clause that follows. It expresses the speaker's or writer's regret or disappointment regarding the situation being described. As noted by Ludwig AI, it is grammatically correct and usable.
Frequent in
News & Media
40%
Science
30%
Formal & Business
15%
Less common in
Encyclopedias
5%
Wiki
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "that regrettably" functions as an adverbial phrase used to express disappointment or sorrow. As Ludwig AI confirms, the phrase is grammatically correct. It is most commonly found in news, science and formal writing. While versatile, overuse in informal contexts may sound stilted; consider alternatives like ""sadly"" or ""unfortunately"". Always ensure its usage aligns with the overall tone of your writing to maintain clarity and appropriateness.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
which is unfortunate
Replaces "regrettably" with "unfortunate", focusing on the negative aspect of the situation.
that is regrettable
Changes the adverb to an adjective, slightly altering the emphasis.
that is disappointing
Substitutes "regrettably" with "disappointing", highlighting the feeling of letdown.
that sadly
Replaces "regrettably" with "sadly", conveying a sense of sorrow.
that unfortunately
Uses "unfortunately" instead of "regrettably", focusing on the bad luck aspect.
which is a matter of regret
Rephrases the sentiment more formally, emphasizing the feeling of regret.
that is a source of disappointment
More elaborate phrasing, emphasizing the cause of disappointment.
to my dismay
Expresses surprise and disappointment at the situation.
much to my regret
Highlights the personal feeling of regret about the situation.
it's a shame that
Expresses a feeling of sadness or pity about the situation.
FAQs
How can I use "that regrettably" in a sentence?
You can use "that regrettably" to introduce a piece of disappointing information. For example, "The project was delayed, "that regrettably" affected our timeline."
What are some alternatives to saying "that regrettably"?
Alternatives include "unfortunately", "sadly", or "it is regrettable" depending on the context.
Is it always appropriate to use "that regrettably" in formal writing?
While generally acceptable, ensure the tone fits. Alternatives like "it is regrettable" might be more suitable in highly formal contexts.
What is the difference between "that regrettably" and "unfortunately"?
"That regrettably" expresses a specific sense of regret along with the unfortunate event, while "unfortunately" simply acknowledges the negative outcome.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested