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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
questionable facts
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "questionable facts" is correct and usable in written English.
It can be used when referring to information or data that is uncertain, dubious, or lacks credibility. Example: "The article presented several questionable facts that raised doubts about its overall reliability."
✓ Grammatically correct
News & Media
Science
Wiki
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
4 human-written examples
John Redwood told BBC News that Lib Dem leader and Deputy Prime Minister Nick Clegg was "too shouty" and relied on "questionable facts and figures".
News & Media
A romance ensues during which any number of questionable facts about Georgie emerge.
News & Media
The process is far too long, uses questionable "facts," relies on negative campaigning and wastes too damn much money.
News & Media
Generally it is a good idea to avoid using websites that have questionable facts or out-of-date information for your research.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
A lot more questionable, in fact.
News & Media
If the latter argument is considered valid, then the likelihood of the 48% reduction in melanoma mortality in 2003 2008 reported for Schleswig Holstein is questionable: in fact, both mortality reduction and its association with screening are questionable.
Science
However, as the distribution of Aotus species were not clearly delimited, their identification is questionable; in fact Manaus is located at the confluence of the distribution of A. vociferans, A. nigriceps and A. trivirgatus.
Science
In view of our findings, we regard attempts to strengthen primary-care without considering to revitalise the principles and values of primary health care [ 7] through a corresponding response from medical education as highly questionable; a fact which has been noted by the WHO more than 15 years ago [ 28, 29].
Science
But in political debates, there's often a questionable move from facts to a conclusion.
News & Media
When one weighs the paucity of evidence on marijuana's harms against the costs of obesity, diabetes and heart disease that assertion is questionable at best.In fact, the most dangerous effect of marijuana may be its known association with the increased consumption of chocolate and chips.Justin Leiby Gainesville, Florida* Letter appears online only.
News & Media
It is questionable whether this fact affects the adoption and whether it is reflected by the perception of the adopters.
Expert writing Tips
Best practice
When using "questionable facts", be specific about why the facts are questionable. Provide context or evidence that raises doubts about their accuracy or reliability.
Common error
Avoid using "questionable facts" when you have definitive proof that the facts are false. "Questionable" implies uncertainty, not outright falsehood.
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "questionable facts" functions as a noun phrase, where "questionable" acts as an adjective modifying the noun "facts". It denotes that the facts being referred to are not fully reliable or trustworthy. Ludwig confirms that this usage is grammatically sound.
Frequent in
News & Media
50%
Science
37%
Wiki
13%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "questionable facts" is a grammatically correct and usable expression to denote facts of uncertain or dubious veracity. Ludwig confirms that this usage is suitable for various writing contexts, although its frequency is relatively rare. When using the expression, provide the context or reasoning for questioning their validity. Alternatives such as "dubious facts" or "unreliable facts" can be used depending on the desired nuance. Overall, while acceptable, "questionable facts" should be employed thoughtfully, and the basis for questioning the facts should be clear to the reader.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
dubious facts
Replaces "questionable" with "dubious", implying a stronger sense of doubt or suspicion.
disputable facts
Emphasizes that the facts are open to argument or disagreement.
unreliable facts
Focuses on the lack of dependability or trustworthiness of the facts.
debatable facts
Highlights that the facts are subject to discussion and differing opinions.
uncertain facts
Stresses the lack of clarity or definiteness surrounding the facts.
contested facts
Indicates that the facts are actively challenged or opposed.
shaky facts
Suggests the facts are weak, unsupported, or easily disproven.
tenuous facts
Implies the facts are fragile or lack a strong foundation.
suspect facts
Indicates that the facts are viewed with suspicion or distrust.
unverified facts
Focuses on the lack of confirmation or validation of the facts.
FAQs
How can I use "questionable facts" in a sentence?
You can use "questionable facts" to express doubts about the reliability or accuracy of information. For example: "The report was dismissed due to "questionable facts" and biased sources."
What's a good alternative to "questionable facts"?
Alternatives include phrases like "dubious facts", "unreliable facts", or "disputable facts", depending on the nuance you want to convey.
Is it okay to use "questionable facts" in formal writing?
Yes, "questionable facts" is suitable for formal writing, but ensure you provide justification for why the facts are being questioned to maintain credibility.
What makes a fact "questionable"?
A fact can be considered "questionable" if it lacks sufficient evidence, comes from an unreliable source, contradicts other established information, or has logical inconsistencies.
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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
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested