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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 doubtful whether
Grammar usage guide and real-world examplesUSAGE SUMMARY
"it is doubtful whether" is a correct and usable phrase in written English.
You can use it to express uncertainty or hesitation about something. Example: It is doubtful whether the stock market will be stable enough to invest in this year.
✓ Grammatically correct
News & Media
Encyclopedias
Science
Alternative expressions(19)
it is uncertain whether
it is questionable whether
it is unlikely whether
it is dubious whether
it is debatable whether
it remains to be seen whether
it is unsure whether
it is unclear whether
it is problematical whether
it remains doubtful whether
it is unknown whether
it is ambiguous whether
it is suspected that
it remains unclear whether
are unlikely
it is not certain that
it is unlikely that
it is highly unlikely that
it was not certain that
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
60 human-written examples
It is doubtful whether doing this would achieve its purpose".
News & Media
It is doubtful whether he will live.
News & Media
It is doubtful whether it ever had any real existence.
Encyclopedias
It is doubtful whether he even considered the possible repercussions.
News & Media
Alas, it is doubtful whether many Australians enjoyed the show.
News & Media
Today it is doubtful whether there is one.
News & Media
It is doubtful whether the admiration goes two ways.
News & Media
It is doubtful whether Cole will play again this season.
News & Media
However, it is doubtful whether fully subsidizing bus fares is financially sustainable.
Science
However, it is doubtful whether he can actually win the election, rather than just saving seats.
News & Media
But it is doubtful whether this sort of violence can be stopped.
News & Media
Expert writing Tips
Best practice
Use "it is doubtful whether" to introduce a statement where you want to express uncertainty or skepticism about a particular outcome or situation. It is suitable for formal writing and adds a nuanced level of doubt.
Common error
While "it is doubtful whether" is a valid expression, avoid overusing it in your writing. Vary your sentence structure by using synonyms or rephrasing to maintain reader engagement.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it is doubtful whether" functions as a hedge, softening a statement and expressing uncertainty or a lack of conviction. It is a declarative clause that introduces a proposition whose truth is being questioned. As Ludwig AI confirms, it's a correct and usable phrase.
Frequent in
News & Media
42%
Encyclopedias
20%
Science
38%
Less common in
Formal & Business
0%
Reference
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "it is doubtful whether" is a versatile phrase used to express uncertainty or skepticism in a polite and formal way. As confirmed by Ludwig AI, this phrase is grammatically correct and widely employed across various domains, including news, encyclopedias, and scientific literature. When using this phrase, be mindful of the context and consider alternatives to avoid repetition and enhance clarity. While it is appropriate for formal writing, varying sentence structures can make your writing more engaging. Always ensure the phrase accurately reflects your intended level of uncertainty.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
it is questionable whether
Changes the phrasing to emphasize the questionability of a situation.
it is uncertain whether
Replaces "doubtful" with "uncertain" to highlight a lack of certainty.
it is improbable whether
Substitutes "doubtful" with "improbable", suggesting a low likelihood.
it is unlikely whether
Emphasizes the low probability of something happening.
it is dubious whether
Uses "dubious" to express skepticism about the truth or validity of something.
it is debatable whether
Highlights that the matter is open to debate and not easily resolved.
it remains to be seen whether
Indicates that the outcome is still unknown and requires further observation.
the possibility is remote that
Phrases the doubt by highlighting a remote possibility.
there's some doubt as to whether
Emphasizes the presence of doubt using a more conversational tone.
one might wonder whether
Uses "wonder" to introduce a sense of questioning and uncertainty.
FAQs
How can I use "it is doubtful whether" in a sentence?
Use "it is doubtful whether" to express uncertainty about a future event or the truth of a statement. For example, "It is doubtful whether the project will be completed on time."
What are some alternatives to "it is doubtful whether"?
You can use alternatives like "it is uncertain whether", "it is questionable whether", or "it is unlikely whether" depending on the context.
Is "it is doubtful that" grammatically correct instead of "it is doubtful whether"?
While "it is doubtful whether" is more formal, "it is doubtful that" is also acceptable in modern English. The choice depends on the desired level of formality.
What's the difference between "it is doubtful whether" and "I doubt whether"?
"It is doubtful whether" is more formal and impersonal, while "I doubt whether" is more direct and expresses a personal opinion or belief. For example: "I doubt whether he will come" is a personal statement.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested