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 undeniably true
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that is undeniably true" is correct and usable in written English.
You can use it to emphasize a statement or fact that is clearly and indisputably accurate. Example: "The evidence presented in the study shows a significant correlation between exercise and mental health, and that is undeniably true."
✓ Grammatically correct
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
4 human-written examples
In terms of the importance of John Paul's intersection with world events, that is undeniably true.
News & Media
Although there is plenty here for infidels to argue with, there is much more that is undeniably true and important to know, if you want to understand the complex histories of both present-day religion and atheism.
News & Media
And of the information that is undeniably true, what does that show you about who he was?" Yeah.
News & Media
That is undeniably true.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
So he decides to answer every question with a statement that's undeniably true: "The Earth is round".
News & Media
In life there are few things that are undeniably true but here's one: Nobody can out-party a drag queen.
News & Media
That's undeniably true, in the same way that American frontier history was not like a spaghetti western, either.
News & Media
And while that's undeniably true, an alternate interpretation suggests a negative connotation.
News & Media
"There's something about [it] that is undeniably beautiful, undeniably organic and natural and real".
News & Media
Rio de Janeiro is undergoing a makeover that is undeniably spectacular.
Science
"There's something about film that is undeniably beautiful, undeniably organic and natural and real," he said.
News & Media
Expert writing Tips
Best practice
Use "that is undeniably true" to reinforce the validity of a statement, particularly when addressing potential skepticism or disagreement. This phrase adds emphasis and leaves little room for doubt.
Common error
Avoid using "that is undeniably true" excessively in casual conversations or informal writing. Its emphatic nature can sound overly formal or even condescending if not used judiciously. Consider simpler alternatives like "that's true" or "certainly" in less formal settings.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that is undeniably true" functions as an affirmative statement, strongly confirming the validity of a preceding claim. As Ludwig AI suggests, it emphasizes a point, leaving little room for doubt. The examples provided showcase its use in various contexts.
Frequent in
News & Media
60%
Science
20%
Formal & Business
10%
Less common in
Academia
5%
Encyclopedias
3%
Wiki
2%
Ludwig's WRAP-UP
In summary, the phrase "that is undeniably true" serves as a powerful tool for affirming the truth of a statement. As Ludwig AI confirms, it is grammatically correct and effective in conveying strong agreement and conviction. While generally neutral to formal in register, its use should be considered carefully to avoid sounding overly emphatic in casual settings. With primary contexts in news and media, understanding its effective usage can help writers ensure they're delivering impactful content in an authoritative voice.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that's unquestionably accurate
Replaces "undeniably" with "unquestionably", implying the accuracy is beyond doubt.
that's an undeniable fact
Replaces "true" with "an undeniable fact", reinforcing the factual nature of the statement.
that's certainly correct
Uses "certainly" instead of "undeniably", suggesting a high degree of confidence in the correctness.
that's absolutely right
Emphasizes agreement using "absolutely", indicating complete concurrence.
that's without a doubt true
Adds the phrase "without a doubt" for extra emphasis on the truthfulness of the statement.
that is demonstrably true
Implies the truth can be shown or proven, replacing "undeniably" with "demonstrably".
that's patently obvious
Suggests the truth is clear and evident, making it easily noticeable.
that's verifiably accurate
Indicates the accuracy can be checked and confirmed, replacing "undeniably" with "verifiably".
that much is clear
Shortens the expression while maintaining the sense of certainty and agreement.
that's a given
Suggests that the statement is a self-evident truth, requiring no further discussion.
FAQs
How can I use "that is undeniably true" in a sentence?
You can use "that is undeniably true" to strongly affirm a statement. For example, "The data clearly shows a decline in sales, and "that is undeniably true"."
What are some alternatives to "that is undeniably true"?
Alternatives include "that is certainly true", "that is absolutely right", or "that is without a doubt true". The best choice depends on the specific context and the level of emphasis you want to convey.
Is "that is undeniably true" formal or informal?
"That is undeniably true" leans towards the formal side due to the use of "undeniably". In more casual settings, phrases like "that's definitely true" or "that's so true" might be more appropriate.
What's the difference between "that is undeniably true" and "that is probably true"?
"That is undeniably true" asserts a fact with a high degree of certainty, suggesting it's beyond dispute. In contrast, "that is probably true" indicates a belief or likelihood, but acknowledges a degree of uncertainty.
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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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested