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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
disappointingly so
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "disappointingly so" is correct and usable in written English.
It can be used to express that something is disappointing to a degree that is notable or significant. Example: "The movie had great potential, but the plot was disappointingly so predictable."
✓ Grammatically correct
News & Media
Wiki
Formal & Business
Alternative expressions(5)
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
"French Connection is making progress but it is slow, perhaps disappointingly so," said Anusha Couttigane, senior consultant at analysis firm Conlumino.
News & Media
But much of the work in between is small or smallish, disappointingly so if the Guggenheim's "China: 5,000 Years" of 1998 is your point of reference.
News & Media
The deputy editor of the Guardian, David McKie, noted the debilitating effect on Biffen: "The whole proceedings seemed horribly suspect and shabby – all the more disappointingly so when the decision came from the mouth of a minister I greatly liked and admired.
News & Media
If all of the above checks out – and all signs point to yes, overwhelmingly so – that would mean the soon-to-be-unveiled iPhone 5 probably won't be an LTE device, perhaps disappointingly so for some who still hadn't ruled out the possibility of a 4G iPhone in spite of mounting evidence that such a handset wouldn't be coming out this year.
News & Media
Leah Greenblatt of Entertainment Weekly said, "it's kind of difficult to believe the song's real meaning will get past even the thickest listener, the video itself is pretty tame...almost disappointingly so".
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Despite the "look at this!" print size, these pictures of blocky cargo containers are disappointingly so-so.
News & Media
'Response rates were disappointingly low, so the pressure to identify people who were infected wasn't so great because there wasn't a lot you could do for them anyway,' comments William Rosenberg.
News & Media
As Vis puts it bluntly: "The volume of certified palm oil traded is disappointingly low so far; the reason for this being that many companies are not prepared to pay a premium for certified oil".
News & Media
Match report: Italy 0-1 Costa Rica Match report: Uruguay 1-3 Costa Rica The hipsters' choice have been disappointingly dull so far given the attacking riches at their disposal but two wins courtesy of three goals from substitutes have already assured their progression to the second round.
News & Media
So disappointingly Cubs.
News & Media
Disappointingly, Washington has so far endorsed Calderón's approach.
News & Media
Expert writing Tips
Best practice
Use "disappointingly so" when you want to concisely emphasize the extent to which something falls short of expectations. It's best suited for contexts where the disappointment is significant or noteworthy.
Common error
While grammatically correct, "disappointingly so" can sound overly formal or stilted in casual conversation. Opt for simpler alternatives like "really disappointing" or "so disappointing" to maintain a natural tone.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "disappointingly so" functions as an adverbial phrase, modifying a preceding clause or statement. It intensifies the feeling of disappointment associated with whatever is being described. As Ludwig AI explains, it expresses that something is disappointing to a notable degree.
Frequent in
News & Media
66%
Wiki
17%
Formal & Business
17%
Less common in
Science
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
"Disappointingly so" is a grammatically sound and readily usable phrase to convey that something falls short of expectations in a noteworthy way. Ludwig AI confirms its correctness and notes its effectiveness in expressing significant disappointment. While suitable for formal writing and news contexts, simpler alternatives might be preferred for casual conversation. Its usage is more frequent in News & Media. Related phrases like "regrettably so" or "unfortunately so" offer similar sentiments with slight variations in tone and emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
regrettably so
Emphasizes the feeling of regret associated with the situation.
unfortunately so
Highlights the unfortunate nature of the situation.
sadly so
Focuses on the sadness caused by the situation.
lamentably so
A more formal and emphatic way of expressing disappointment.
disappointingly true
Highlights that something is disappointingly factual.
frustratingly so
Emphasizes the frustration caused by the situation.
unsatisfactorily so
Focuses on the lack of satisfaction derived from the situation.
to a disappointing extent
Expresses the degree to which something is disappointing.
more disappointing than expected
Emphasizes the surprise of the disappointment.
worse than anticipated
Highlights the unpleasant surprise.
FAQs
How can I use "disappointingly so" in a sentence?
You can use "disappointingly so" to emphasize the level of disappointment. For example, "The results were promising, but the actual implementation was "disappointingly so" ineffective."
What are some alternatives to "disappointingly so"?
Alternatives include "regrettably so", "unfortunately so", or simply "so disappointing", depending on the context and desired level of formality.
Is "disappointingly so" grammatically correct?
Yes, "disappointingly so" is grammatically correct and functions as an adverbial phrase modifying the preceding statement.
When is it appropriate to use "disappointingly so"?
It's appropriate in formal and semi-formal contexts, especially in writing, to emphasize the degree of disappointment. Avoid it in very casual conversations where it might sound unnatural.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested