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
is without doubt
Grammar usage guide and real-world examplesUSAGE SUMMARY
"is without doubt" is a correct and usable phrase in written English.
It is used to convey certainty and typically follows a statement that is factually true. For example: "Henry VIII was one of the most influential monarchs in English history; this is without doubt."
✓ Grammatically correct
News & Media
Science
Academia
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
He is without doubt an inspiring leader.
News & Media
Her masterpiece is without doubt Café Müller.
News & Media
He is, without doubt, someone worth following.
News & Media
Yarl's Wood is, without doubt, a prison.
News & Media
He is, without doubt, a force".
News & Media
"He is without doubt the greatest cricketer India has produced.
News & Media
"This is without doubt wholly within the national interest".
News & Media
And it is, without doubt, a great British menu.
News & Media
Joe Mauer is without doubt the best...or is he?
News & Media
But it is without doubt the fastest-growing.
News & Media
This is, without doubt, the defining bill of the session.
News & Media
Expert writing Tips
Best practice
When using "is without doubt", ensure that the statement following it is based on solid evidence or widely accepted facts to maintain credibility.
Common error
Avoid using "is without doubt" excessively in casual conversations or informal writing, as it can sound overly formal or even pretentious. Opt for simpler expressions like "certainly" or "definitely" in such situations.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is without doubt" functions as an adverbial phrase that modifies a statement, adding emphasis and conveying certainty about its truth or validity. It strengthens the assertion being made, indicating that there is no room for questioning or skepticism. Ludwig AI indicates that the expression is well-formed and commonly used.
Frequent in
News & Media
58%
Science
25%
Academia
8%
Less common in
Formal & Business
6%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "is without doubt" is a powerful tool for emphasizing certainty and conviction in writing and speech. As noted by Ludwig AI, the phrase is considered grammatically correct and frequently used. It functions as an adverbial phrase, adding weight to the assertion being made. While versatile, it's best suited for neutral and formal contexts, and overusing it in casual settings can sound unnatural. Remember to ensure the statement following the phrase is well-supported by evidence to maintain credibility. Alternatives like "is certainly" or "is undoubtedly" may be more appropriate in some situations.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is certainly
Emphasizes certainty but lacks the explicit negation found in "is without doubt".
is undoubtedly
Conveys the same level of certainty but uses an adverbial form.
is unquestionably
Indicates that something cannot be questioned or challenged.
is definitively
Suggests a conclusive or final assessment.
is assuredly
Implies confidence and a lack of risk or uncertainty.
is beyond question
Highlights that something is not open to debate or doubt.
is indisputably
Indicates that something is impossible to argue against or deny.
is demonstrably
Implies that something has been proven or can be shown to be true.
is patently
Suggests that something is obvious or easily apparent.
is veritably
Implies that something is genuinely or truly the case.
FAQs
How can I use "is without doubt" in a sentence?
The phrase "is without doubt" is typically used to emphasize the certainty of a statement. For example, "Her contribution to the project "is without doubt" significant."
What are some alternatives to "is without doubt"?
You can use alternatives like "is certainly", "is undoubtedly", or "is unquestionably" depending on the context.
Which is correct, "is without doubt" or "there is no doubt that"?
Both ""is without doubt"" and "there is no doubt that" are grammatically correct and convey a similar meaning of certainty. The choice depends on the desired sentence structure and emphasis.
What's the difference between "is without doubt" and "in my opinion"?
"Is without doubt" asserts a high degree of certainty or factual correctness, while "in my opinion" introduces a subjective viewpoint. Use "is without doubt" when you are confident in the truth of a statement, and "in my opinion" when expressing a personal belief or judgment.
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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