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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
is undeniably that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is undeniably that" is not correct in standard written English.
It is not a commonly used construction and may lead to confusion in meaning. Example: "The fact is undeniably that we need to take action now."
⚠ May contain grammatical issues
News & Media
Science
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
1 human-written examples
While not everyone is a Hockney fan, it is undeniably that he has managed to stay relevant and prolific for quite a while without really giving a damn about what people think.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
And of the information that is undeniably true, what does that show you about who he was?" Yeah.
News & Media
We note here that Greene is undeniably correct that by administering a systemic drug one cannot know for certain that either the observed behavioral decrements in recall (amnesia) and the associated improvement in TI, are related specifically to hippocampal deactivation.
We argue that, while it is undeniably true that the vast majority of HIV-1 replication occurs in T cells, macrophages may nonetheless represent an important target cell type.
Science
Yet it is undeniably touching, and that's the compelling reaction, the one, alas, you're left wanting to know more about.
News & Media
The safety record of the global nuclear industry is undeniably better than that of just about any other energy-generating technology.
News & Media
Which is undeniably true, but that doesn't make Twitter not a social network, at least not in my book.
News & Media
It is undeniably true that women tend to become poorer after divorce and that children from single-family homes are more likely to grow up in poverty.
News & Media
It is undeniably true that coal employment has fallen considerably in recent decades, and that the communities left behind deserve our attention and need economic development.
News & Media
But it is undeniably true that human beings contain multiple, conflicting desires, drives and impulses, and that we may want something at the same time as wanting not to want it (just ask casino owners).
News & Media
Not only was I not her manager any more, but she'd written this huge hit that's undeniably brilliant, that was a complete mockery of our friendship and of what she needed.
News & Media
Expert writing Tips
Best practice
Avoid using the phrase "is undeniably that" in formal writing. Opt for clearer and more grammatically accepted alternatives such as "is undoubtedly true" or "is indisputably the case" to ensure effective communication.
Common error
Don't assume that adding "undeniably" strengthens your statement if the structure becomes clunky. Rephrase to improve flow. For example, instead of "the problem is undeniably that we lack resources", try "it is undeniable that we lack resources" or "the resource shortage is undeniable".
Source & Trust
86%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is undeniably that" functions as a linking phrase intended to emphasize the certainty of a following statement. However, the structure is non-standard, as noted by Ludwig, potentially leading to awkward phrasing. Stronger alternatives exist for conveying the same meaning.
Frequent in
News & Media
50%
Science
50%
Formal & Business
0%
Less common in
Wiki
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, while "is undeniably that" aims to express certainty, it is not a standard or grammatically preferred phrase in English. As Ludwig AI highlights, the structure is awkward, and clearer alternatives like "is undoubtedly true" or "it is undeniable that" are recommended. Although examples appear in news and scientific contexts, prioritizing grammatical correctness will improve clarity and impact.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is undoubtedly true
Replaces "undeniably that" with "undoubtedly true", using a more standard adverb-adjective combination to express certainty.
is unquestionably the case
Substitutes "undeniably that" with "unquestionably the case", offering a stronger and more formal assertion.
is indisputably true
Replaces "undeniably that" with "indisputably true", providing a slightly more formal and emphatic alternative.
is demonstrably true
Substitutes "undeniably that" with "demonstrably true", emphasizing the availability of evidence to support the claim.
is patently clear
Replaces "undeniably that" with "patently clear", indicating that something is obvious and easily understood.
is certainly the case
Replaces "undeniably that" with "certainly the case", offering a slightly less forceful but still affirmative statement.
is manifestly obvious
Substitutes "undeniably that" with "manifestly obvious", suggesting that something is plainly apparent.
is beyond question
Replaces "undeniably that" with "is beyond question", indicating that there is no room for doubt.
is plainly evident
Substitutes "undeniably that" with "is plainly evident", emphasizing the clear and visible nature of the truth.
is absolutely certain
Replaces "undeniably that" with "is absolutely certain", intensifying the level of assurance.
FAQs
How can I rephrase "is undeniably that" for better clarity?
Instead of "is undeniably that", consider using phrases like "is undoubtedly true", "is indisputably clear", or "is certainly the case" for improved clarity and grammatical correctness.
What are some alternatives to "is undeniably that" in formal writing?
In formal contexts, replace "is undeniably that" with stronger and more accepted phrases such as "is unquestionably the case", "is demonstrably true", or "is patently obvious".
Is "is undeniably that" grammatically correct?
While understandable, "is undeniably that" is not considered standard English. It's better to use phrases like "is undeniably true" or "it is undeniable that" for better grammatical structure.
What is the difference between "is undeniably that" and "it is undeniable that"?
"It is undeniable that" is a more grammatically correct and widely accepted construction than "is undeniably that". The former uses a standard subject-verb-complement structure, whereas the latter can sound awkward.
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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
86%
Authority and reliability
2.8/5
Expert rating
Real-world application tested