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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
it is questionable whether this
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it is questionable whether this" is correct and usable in written English.
You can use it when expressing doubt or uncertainty about a particular statement, idea, or situation. Example: "It is questionable whether this approach will yield the desired results in the long term."
✓ Grammatically correct
News & Media
Science
Encyclopedias
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
53 human-written examples
Additionally, Rep. Issa said, at such high speeds "it is questionable whether this Web site is even safe for consumers to use, particularly the elderly".
News & Media
Given its isolation, it is questionable whether this is a very representative data point, although why is not apparent.
Such a large structure would naturally have absorbed and reflected sunlight that warmed the tissue and its internal blood vessels, but it is questionable whether this was an important or necessary function of the frill, since other dinosaurs do not have similar structures.
Encyclopedias
This has been questioned repeatedly, and while there is no doubt that MZ twins are treated more similarly than DZ twins, it is questionable whether this environmental similarity causes increased phenotypic concordance.
Science
But it is questionable whether this represents progress.
News & Media
Yet it is questionable whether this is actually a good thing for English cricket.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
7 human-written examples
But it's questionable whether this makes for a better book.
News & Media
The new partnership between the two companies isn't without a few caveats, however, and it's questionable whether this is finally — finally — the breakthrough that Flattr has been looking for to prove that its idiosyncratic payments model actually has legs.
News & Media
But it's questionable whether this is a viable long-term solution.
News & Media
Still, it's questionable whether this game is worse than the beat 'em up Phil forced his child to play some two decades later.
News & Media
"It's questionable whether this park will be open and available for the public to enjoy come Memorial Day weekend," said Santa Barbara County Supervisor Salud Carbajal, who was assessing the damage at Refugio State Beach.
News & Media
Expert writing Tips
Best practice
When employing "it is questionable whether this", ensure that the statement following it is specific and clearly defined to avoid ambiguity. Vague statements can weaken the impact of your expression of doubt.
Common error
Avoid using "it is questionable whether this" in contexts where you intend to make a strong, assertive claim. This phrase introduces doubt and can undermine your credibility if your goal is to persuade or convince.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it is questionable whether this" functions as an evaluative expression, introducing doubt or uncertainty regarding a subsequent statement or proposition. It signals that the speaker or writer is not entirely convinced of something and invites further scrutiny or consideration. Ludwig examples confirm this usage across diverse contexts.
Frequent in
News & Media
32%
Science
59%
Encyclopedias
6%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "it is questionable whether this" is a versatile phrase used to introduce doubt or uncertainty. As confirmed by Ludwig, it functions as an evaluative expression, prompting critical analysis and inviting alternative perspectives. Its neutral register makes it suitable for diverse contexts, from news reporting to scientific discourse. The phrase appears most frequently in scientific and news media sources. While grammatically correct, ensure its use aligns with your intended level of assertiveness to maintain credibility and clarity in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it is uncertain if this
Changes "questionable" to "uncertain" and "whether" to "if", offering a slightly less formal tone.
it is doubtful that this
Replaces "questionable whether" with "doubtful that", emphasizing a stronger sense of disbelief.
it is debatable whether this
Substitutes "questionable" with "debatable", suggesting the matter is open to discussion.
it remains to be seen if this
Uses a more idiomatic expression, indicating that the outcome is yet to be determined.
the validity of this is questionable
Reorders the sentence to focus on the validity of the subject, using "questionable" as an adjective.
there are doubts about whether this
Shifts the focus to the presence of doubts, rather than directly questioning the subject.
it is not clear whether this
Replaces "questionable" with "not clear", indicating a lack of understanding or certainty.
this is open to question
Uses a more concise phrasing, suggesting that the subject is not settled and can be challenged.
one might question whether this
Introduces a subjective element, suggesting that someone might doubt the subject.
the reliability of this is uncertain
Focuses specifically on the reliability of the subject, using "uncertain" instead of "questionable".
FAQs
How can I use "it is questionable whether this" in a sentence?
Use "it is questionable whether this" to express doubt or uncertainty about a statement. For instance, "It is questionable whether this new policy will effectively reduce crime rates".
What are some alternatives to "it is questionable whether this"?
You can use alternatives like "it is uncertain if this", "it is doubtful that this", or "it is debatable whether this" to express similar levels of doubt or uncertainty.
Is it better to use "it is questionable whether this" or "it is uncertain whether this"?
Both phrases are correct, but "it is questionable whether this" implies a slightly stronger sense of doubt or skepticism compared to "it is uncertain if this", which simply expresses a lack of certainty.
What's the difference between "it is questionable whether this" and "it is not clear whether this"?
"It is questionable whether this" suggests that there are reasons to doubt something, while "it is not clear whether this" indicates a lack of information or understanding. The former implies doubt, the latter implies confusion or obscurity.
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested