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
Undoubtedly
Grammar usage guide and real-world examplesUSAGE SUMMARY
The word "undoubtedly" is correct and usable in written English.
It can be used to express that something is unquestionably true or that it cannot be denied. Example sentence: "Undoubtedly, the most important thing in life is to be happy."
✓ Grammatically correct
News & Media
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
Undoubtedly, according to Anderson, who thinks his game is unlike any other on the tour.
News & Media
While it is undoubtedly positive that the world (and by the world, we mean the press and social media) has appeared to embrace Jenner and all that she represents, it is less pleasing to see how she has, overnight, become subject to the same treatment as every other woman in the mainstream media.
News & Media
But the narrow nature of Mr Trimble's victory today has undoubtedly left him weakened and will give him little room for manoeuvre in any future discussions with Sinn Fein.
News & Media
He said he had concerns about the arrests, that they may constitute a "possible miscarriage of justice" and that they were "undoubtedly being used to undermine Sinn Fein's contribution to the peace process in Ireland".
News & Media
And if you take the fighting in Mali and the attack on the refinery, and add it to a list of all the incidents occurring around the globe involving extremist Islamist violence, it is undoubtedly a frightening picture.
News & Media
The Tories have promoted fracking, undoubtedly to the great delight of Tory donors hoping to profit from it.
News & Media
But while many voters in the constituency undoubtedly hold dear the idea of universal healthcare for all, it was not their first concern in this byelection.
News & Media
But the biggest change is undoubtedly the absence of Cowell, the man whose acerbic putdowns, geometric haircut and freakishly incandescent teeth put the show on the map in the first place.
News & Media
Such a programme would undoubtedly hit the poor most, serving to aggravate inequality.
News & Media
Without that nascent partnership, delivery of the peace process would undoubtedly have been harder and longer to nurture.
News & Media
On the doorstep in the constituency there was undoubtedly a lot of warmth expressed toward him – and he had helped a lot of people during his time as an MP.
News & Media
Expert writing Tips
Best practice
Use "undoubtedly" to add emphasis and conviction to your statements, ensuring that your audience perceives your message as certain and credible.
Common error
Avoid using "undoubtedly" too frequently, as it can make your writing sound repetitive or overly assertive. Opt for synonyms or rephrase sentences to maintain variety and a natural tone.
Source & Trust
92%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The adverb "undoubtedly" functions as an intensifier, modifying a verb, adjective, or another adverb to emphasize the certainty or truth of a statement. As Ludwig examples show, it underscores the speaker's conviction.
Frequent in
News & Media
100%
Less common in
Science
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, "undoubtedly" is a versatile adverb used to express certainty and conviction. As confirmed by Ludwig AI, it is grammatically correct and frequently used in various contexts, particularly in news and media. While it enhances the strength of a statement, it's important to avoid overuse to maintain a natural writing style. Alternatives such as "without a doubt" or "certainly" can be used to provide variety. Understanding its function and appropriate usage can significantly improve the clarity and impact of your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Without a doubt
This alternative emphasizes the absence of any doubt, focusing on the conclusive nature of the statement.
Most assuredly
This is a more emphatic version of "assuredly", increasing the level of certainty.
Indubitably
This is a more formal synonym, suggesting a high degree of certainty and leaving no room for dispute.
Unquestionably
This alternative highlights that the statement is beyond question and not subject to debate.
Beyond question
Similar to "unquestionably", this indicates that the statement is irrefutable.
Certainly
This expresses confidence in the truth or validity of the statement.
Definitely
Similar to "certainly", this emphasizes a firm and clear affirmation.
Assuredly
This conveys a sense of confidence and guarantee about the statement.
Positively
This emphasizes a strong and affirmative confirmation.
Decidedly
This suggests a clear and unmistakable quality or characteristic.
FAQs
How can I use "undoubtedly" in a sentence?
"Undoubtedly" is typically used to emphasize a point or express certainty. For example, "Undoubtedly, this is the best solution to the problem."
What can I say instead of "undoubtedly"?
You can use alternatives like "without a doubt", "certainly", or "definitely" depending on the context.
Which is correct, "undoubtedly" or "undoubtably"?
"Undoubtedly" is the correct spelling. "Undoubtably" is a common misspelling.
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
92%
Authority and reliability
4.6/5
Expert rating
Real-world application tested