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
it is doubtful if
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it is doubtful if" is a correct and usable phrase in written English.
You can use it when to express that you are not certain something will happen or you are unsure of its potential outcome. Example: It is doubtful if I'll be able to attend the meeting tomorrow.
✓ Grammatically correct
News & Media
Encyclopedias
Science
Alternative expressions(20)
it is uncertain whether
it is unlikely that
it remains to be seen whether
it is open to question whether
It is questionable whether
It is uncertain whether
It is unlikely that
It is improbable that
It is dubious whether
It remains to be seen whether
it is debatable if
it is dubious if
it is unclear if
it is suspicious if
it is problematic if
it is uncertain if
it is unlikely if
it is certain if
it is unsure if
it is ambiguous if
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
59 human-written examples
It is doubtful if Hammond tried that.
News & Media
It is doubtful if retaliation was ever used.
Encyclopedias
However, it is doubtful if the Hashid have the strength to recapture Ramadi.
News & Media
It is doubtful if many who bought it read it through.
News & Media
It is doubtful if Bruening's successor can sustain himself without the support of the National Socialists.
News & Media
It is doubtful if the story will do much to influence Times readers.
News & Media
It is doubtful if that promise was decisive in Cameron's victory as party leader.
News & Media
Without Markova, it is doubtful if the infant company could have established itself so quickly.
News & Media
It��is doubtful if any other fiddler in this genre has wielded such influence.
News & Media
Indeed, it is doubtful if Byzantine society could have tolerated another Basil II, despite all his triumphs.
Encyclopedias
It is doubtful if Murray has wondered how abnormal his life might have been had he won.
News & Media
Expert writing Tips
Best practice
Use "it is doubtful if" when you want to express a degree of skepticism or uncertainty without making a definitive statement. This allows you to introduce nuance and avoid overstating your position.
Common error
While grammatically correct, avoid using "it is doubtful if" excessively in very formal or academic writing. Consider more direct and assertive phrasing when appropriate to strengthen your argument.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it is doubtful if" functions as a qualifier, expressing uncertainty or skepticism about a particular situation or outcome. Ludwig AI confirms it's correct and usable. Examples demonstrate its role in introducing doubt.
Frequent in
News & Media
63%
Science
18%
Encyclopedias
5%
Less common in
Wiki
5%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "it is doubtful if" is a commonly used phrase to express uncertainty or skepticism. Ludwig AI confirms its grammatical correctness. It appears frequently in news media, science, and encyclopedias, indicating broad applicability. Though suitable for many contexts, more formal options exist for academic or professional writing. When employing this phrase, consider its potential to soften claims and convey nuance without absolute assertion. The best way to use it is to introduce a sense of doubt or reservation regarding an expectation.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
It is questionable whether
Replaces "doubtful" with "questionable", suggesting a slightly more open possibility of being disproven.
It is uncertain whether
Substitutes "doubtful" with "uncertain", emphasizing a lack of sureness about a future outcome.
It is unlikely that
Uses "unlikely" to express a low probability, shifting the focus from doubt to probability.
It is improbable that
Employs "improbable" to indicate a situation that is not likely to occur or be true.
It is dubious whether
Replaces "doubtful" with "dubious", suggesting a stronger sense of suspicion or distrust.
It remains to be seen whether
Indicates that the outcome is still unknown and requires further observation.
There is some doubt as to whether
Restructures the sentence to highlight the presence of doubt.
One may question if
Offers a more subjective perspective, suggesting that the speaker is personally questioning the matter.
It is open to question whether
Highlights that the topic is debatable and lacks a definitive answer.
The possibility is remote that
Expresses a very low likelihood of something occurring, focusing on the remoteness of the chance.
FAQs
How can I use "it is doubtful if" in a sentence?
Use "it is doubtful if" to express uncertainty or skepticism about a future event or a particular outcome. For example, "It is doubtful if the project will be completed on time given the current delays."
What's a more formal alternative to "it is doubtful if"?
A more formal alternative is "it is uncertain whether", which conveys a similar meaning but with a slightly elevated tone.
Is there a difference between "it is doubtful if" and "it is unlikely that"?
While similar, "it is doubtful if" implies a sense of uncertainty or skepticism, whereas "it is unlikely that" focuses more on the low probability of something occurring.
What can I use instead of "it is doubtful if" to sound less negative?
You could use phrases like "it remains to be seen whether" or "it is open to question whether", which are more neutral and exploratory.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
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
4.5/5
Expert rating
Real-world application tested