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 ostensibly
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that is ostensibly" is correct and usable in written English.
You can use it when you want to indicate that something appears to be true or is claimed to be true, but may not actually be the case. Example: "The report claims to provide an unbiased analysis, but that is ostensibly not the case given the sources used."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(3)
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
38 human-written examples
Is there anything morally inconsistent, as Jews and as American, in celbrating a holiday that is ostensibly about the removal of occupiers?
News & Media
And this is a campaign that is ostensibly claiming to challenge negative body image.
News & Media
It is great to see something on the television that is ostensibly for children that has such high production values.
News & Media
ON THE SCREEN -- The Republican advertisement features a notebook that is ostensibly comparing the Bush and Gore prescription drug plans.
News & Media
observer mission in which the United States participated — she in effect denied the legitimacy of the Russian government that is ostensibly our partner in the U.S.-Russia "reset".
News & Media
Mr. Netanyahu said this afternoon, "I call on the lawmakers at this very moment to oppose the bill that is ostensibly named after me".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
19 human-written examples
Many deals that are ostensibly American are now held up for months for Chinese regulatory approval.
News & Media
Countries can impose these tariffs on imports that are ostensibly "dumped" or sold below cost.
News & Media
Westerners reacted better to gifts that were ostensibly rewards for hard work.
News & Media
But perhaps the film's most extraordinary scene was one that was (ostensibly) calm.
News & Media
So instead, people duck into restaurants, stores or other places that are ostensibly better monitored.
News & Media
Expert writing Tips
Best practice
When using "that is ostensibly", ensure the surrounding context provides subtle clues or hints that contradict the initial appearance. This helps to create a sense of intrigue and encourages the reader to question assumptions.
Common error
Avoid using "that is ostensibly" in situations where there is no underlying doubt or contradiction. Overusing it can make your writing sound unnecessarily cynical or skeptical when a more straightforward description would suffice.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that is ostensibly" functions as an adverbial phrase, modifying a verb or adjective to express a sense of outward appearance or professed intention that may differ from the underlying reality. As Ludwig AI states, it suggests something appears to be true but might not actually be the case.
Frequent in
News & Media
73%
Science
17%
Encyclopedias
6%
Less common in
Formal & Business
2%
Social Media
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "that is ostensibly" is a common adverbial phrase used to introduce an element of doubt or skepticism, suggesting a potential difference between appearance and reality. According to Ludwig AI, the phrase is grammatically correct and well-suited for formal writing, particularly in news and media contexts. However, it's crucial to avoid overuse in neutral situations where no underlying doubt is present. Consider using alternatives like "that is seemingly" or "that is apparently" to avoid sounding overly cynical. By understanding its proper usage and potential pitfalls, you can effectively enhance your writing with nuance and precision.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that is ostensibly
Implies a contrast between the stated purpose and the actual situation, hinting at deception.
that is seemingly
Emphasizes appearance or impression over confirmed reality; slightly less formal.
that is apparently
Highlights the perceived or evident nature, but allows for doubt or further information.
that is purportedly
Stresses the claim or allegation being made, potentially questioning its truth.
that is allegedly
Specifically indicates something is claimed but not yet proven, often in legal contexts.
that is outwardly
Focuses on external appearance, suggesting that the internal reality might be different.
that is superficially
Highlights a lack of depth or thoroughness, indicating a shallow understanding.
that is nominally
Indicates something exists in name only, without real power or effect.
that is professedly
Emphasizes the declared or avowed nature of something, which may not be genuine.
that is putatively
Suggests something is commonly accepted or assumed, though possibly without solid evidence.
FAQs
How can I use "that is ostensibly" in a sentence?
Use "that is ostensibly" to describe something that appears one way, but might be different in reality. For example: "The program "that is ostensibly" designed to help the poor often benefits the wealthy".
What phrases are similar to "that is ostensibly"?
Similar phrases include "that is seemingly", "that is apparently", or "that is purportedly". The best choice depends on the specific nuance you want to convey.
Is "that is ostensibly" formal or informal?
"That is ostensibly" is considered relatively formal. Use it in academic papers, news articles, or professional reports. For more casual writing, consider alternatives like "it seems" or "it appears".
What's the difference between "that is ostensibly" and "that is allegedly"?
"That is ostensibly" suggests a contrast between appearance and reality, while "that is allegedly" indicates something is claimed but not yet proven. The first highlights potential deception, and the second, unverified information.
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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