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
strongly doubt that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "strongly doubt that" is correct and usable in written English. You can use it when expressing a firm disbelief or skepticism about a statement or situation. Example: "I strongly doubt that he will arrive on time." Alternative expressions include "seriously doubt" and "have significant doubts about."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
highly doubt that
I find that hard to believe
I very much doubt that
I sincerely doubt that
I truly doubt that
I really doubt that
I question that
question that
it's unlikely that
I'm not convinced that
skeptical of that
not likely true
unlikely scenario
i doubt that
doubt it
I greatly doubt that
improbable
implausible
far from certain
scarcely credible
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
30 human-written examples
I strongly doubt that many diners finish their dessert here.
News & Media
As a partisan, I strongly doubt that the current president has such nefarious motives or would stoop to such tactics.
News & Media
"We strongly doubt that our father's health can withstand the stress of a trial or further detainment," family members wrote.
News & Media
I strongly doubt that instead it's letting its employees fly all over the landscape with giant penises attached to their avatars' foreheads.
News & Media
I strongly doubt that Mr. Eastwood, who also directed the film, and David Webb Peoples, its writer, intend that we admire this regression.
News & Media
We hope that Syrians find solutions to the crisis soon, but we strongly doubt that the regime's terrorizing the population will end the crisis.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
30 human-written examples
Dr. Wieman said he strongly doubted that the new instructors had this kind of effect on the students.
News & Media
Analysts and diplomats, however, said they strongly doubted that the groups could operate in Syria, a police state, without the approval of the government.
News & Media
Irma Zandl, a New York youth marketing consultant, said she strongly doubted that the majority of young Americans viewed such items, even those merchandised in a cynical way, purely as kitsch.
News & Media
Syrian political experts said they strongly doubted that the Syrian government would entertain Sheik Khatib's offer, partly because that could create the impression that Mr. Assad would look weak if he were to accept the conditions.
News & Media
The U.S. Centers for Disease Control and Prevention strongly doubts that this year's flu vaccine will offer people any protection from the swine flu.
Science & Research
Expert writing Tips
Best practice
Use "strongly doubt that" to express a firm but polite disagreement or skepticism, especially when you have good reason to believe something is not true. This phrase adds a layer of professional distance, unlike directly saying "I don't believe it."
Common error
Avoid using "strongly doubt that" too frequently in your writing. Vary your language with alternatives like "seriously question", "highly skeptical", or "find it hard to believe" to maintain reader engagement and avoid sounding repetitive.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "strongly doubt that" functions as a declarative expression of disbelief or skepticism. Ludwig examples show it's typically used to politely but firmly question the validity of a statement or expectation. The Ludwig AI confirms its usability.
Frequent in
News & Media
85%
Science
8%
Formal & Business
3%
Less common in
Wiki
2%
Encyclopedias
1%
Social Media
1%
Ludwig's WRAP-UP
In summary, "strongly doubt that" is a phrase used to politely but firmly express disbelief or skepticism. As the Ludwig AI confirms, it's grammatically correct and suitable for various contexts, particularly in news and media, science, and formal business settings. The phrase allows you to convey uncertainty or disagreement without being overly confrontational. While its frequency is considered common, varying your language with alternatives like "seriously question that" or "highly skeptical of that" can prevent repetition and maintain reader engagement.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
seriously question that
Emphasizes a deep level of scrutiny and uncertainty.
highly skeptical of that
Highlights a strong degree of doubt, focusing on a lack of confidence in the statement.
find it hard to believe that
Indicates difficulty in accepting something as true.
remain unconvinced that
Suggests a continued state of disbelief despite presented evidence.
have serious reservations about that
Indicates significant concerns and doubts about the validity or feasibility.
am inclined to disbelieve that
Suggests a leaning towards disbelief, often based on personal judgment or prior experience.
view that with considerable suspicion
Emphasizes distrust and doubt towards a particular viewpoint or claim.
take a dim view of that
Expresses a negative opinion and a lack of faith in the outcome.
beg to differ on that
A polite disagreement, implying a contrasting belief.
not entirely sure about that
Indicates mild uncertainty or a lack of complete agreement.
FAQs
What does "strongly doubt that" mean?
The phrase "strongly doubt that" indicates a firm disbelief or skepticism about a statement or situation. It expresses a higher degree of doubt than simply saying "I doubt that".
How can I use "strongly doubt that" in a sentence?
You can use "strongly doubt that" followed by a clause expressing the doubtful statement. For example, "I "strongly doubt that" he will arrive on time."
What are some alternatives to "strongly doubt that"?
You can use alternatives such as "seriously question that", "highly skeptical of that", or "find it hard to believe that", depending on the context.
Is it better to say "I doubt that" or "I strongly doubt that"?
Saying "I strongly doubt that" emphasizes a higher degree of disbelief compared to "I doubt that". The choice depends on how firmly you want to express your skepticism.
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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested