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
that is supposedly
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that is supposedly" is correct and usable in written English.
It is usually used when you are expressing doubt or uncertainty about something and it usually follows a statement. For example: "The food is supposed to be here soon, that is supposedly."
✓ Grammatically correct
News & Media
Academia
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
48 human-written examples
Elsewhere," the Boston hospital that is supposedly named St.
News & Media
The tribe, just 403-strong, lives in a jungle reserve that is supposedly protected.
News & Media
But wish lists matter, too, especially for a Party that is supposedly trying to change its public image.
News & Media
Nor is there going to be easy labor mobility around Europe, even though that is supposedly guaranteed now.
News & Media
LAS VEGAS -- The electronics casemaker Speck has rolled out an iPhone cover that is supposedly kind to the thumbs.
News & Media
Not bad for a legacy industry that is supposedly under sustained attack from insurgents and secular challenges.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
12 human-written examples
"This is the problem that was supposedly addressed after Watergate".
News & Media
"I retweeted somebody that was supposedly an expert," Trump said.
News & Media
There are some plants that are supposedly edible but that you would struggle to eat.
News & Media
"And it's all still coming from this thing that's supposedly losing value.
News & Media
It is not even uncommon for investors to arrive on land that was supposedly empty.
News & Media
Expert writing Tips
Best practice
Avoid overuse. While useful, overusing "that is supposedly" can make your writing sound overly skeptical or indecisive. Vary your phrasing with alternatives like "it is claimed that" or "it is believed that".
Common error
Don't use "that is supposedly" to lend false credibility to unreliable sources. Clearly indicate the source of the information and the reason for your skepticism.
Source & Trust
91%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that is supposedly" functions as a hedge, qualifying a statement by indicating the speaker's uncertainty or skepticism about its truth. As Ludwig AI confirms, it's used to introduce information that might not be entirely accurate or reliable.
Frequent in
News & Media
75%
Academia
15%
Science
5%
Less common in
Formal & Business
2%
Wiki
2%
Reference
1%
Ludwig's WRAP-UP
In summary, "that is supposedly" is a versatile phrase used to introduce information with a hint of skepticism or uncertainty. Ludwig AI confirms its correct usage. It's prevalent in news and media, as well as academic writing, indicating a neutral register. While grammatically correct, it's essential to use it judiciously to avoid sounding overly doubtful and to clearly attribute sources of information. Consider alternatives like "that is allegedly" or "it is claimed that" to vary your phrasing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that is allegedly
Replaces "supposedly" with "allegedly", implying the information is based on unproven accusations.
that is purportedly
Substitutes "supposedly" with "purportedly", suggesting the information is presented as fact but may not be true.
that is ostensibly
Replaces "supposedly" with "ostensibly", highlighting that something appears to be the case but might not be in reality.
that is reputedly
Changes "supposedly" to "reputedly", indicating the information is based on widespread belief but lacks concrete proof.
that is rumored to be
Replaces "supposedly" with "rumored to be", indicating the information is based on hearsay and lacks confirmation.
it is claimed that
Replaces the entire phrase with a more formal structure, "it is claimed that", emphasizing the lack of verification.
it is said that
Similar to "it is claimed that", but with a more generic attribution of the information's source.
that is believed to be
Shifts the focus to a belief, rather than a supposed fact, softening the assertion.
that is thought to be
Similar to "believed to be", but with a slightly more tentative tone.
that is considered to be
Indicates a common perception, but not necessarily a proven reality.
FAQs
How can I use "that is supposedly" in a sentence?
Use "that is supposedly" to introduce information you're uncertain about, like in "The new diet, "that is supposedly" a revolutionary approach, didn't work for me."
What are some alternatives to "that is supposedly"?
You can use alternatives like "that is allegedly", "that is purportedly", or "it is claimed that" depending on the context and the degree of doubt you want to express.
Is it better to say "that is supposedly" or "that is supposed to be"?
While both phrases are grammatically correct, "that is supposedly" conveys a sense of uncertainty or doubt, while "that is supposed to be" typically indicates an expectation or plan. For example, "That is supposedly a good restaurant" expresses skepticism, whereas "That is supposed to be a good restaurant" simply indicates a plan to try it.
When is it inappropriate to use "that is supposedly"?
Avoid using "that is supposedly" when you have concrete evidence that something is false. In such cases, a more direct statement is more appropriate. Also, be mindful of overuse, as it can make your writing sound overly doubtful.
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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
91%
Authority and reliability
4.6/5
Expert rating
Real-world application tested