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
this has undoubtedly
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "this has undoubtedly" is correct and usable in written English.
It can be used to express certainty or strong belief about a statement or situation. Example: "This has undoubtedly been the most challenging project I have ever worked on."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(3)
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
25 human-written examples
But this has undoubtedly been one of the most challenging years in its history.
News & Media
This has undoubtedly happened downstream of the West Branch in the main stem of the Delaware.
News & Media
Although this has undoubtedly saved dollars and headaches, it's also led to slower growth, lower margins, and less innovation.
News & Media
This has undoubtedly helped Radio 4 to secure the best new and established comedy talent for our listeners and raise the network's profile".
News & Media
More recently, relations between Treasury and governor appear to have deteriorated again, and this has undoubtedly affected the atmosphere in the runup to the selection of King's successor.
News & Media
This has undoubtedly made the prospects of improving natural soils an attractive option, coupled with the ever increasing zest of zero waste, reduction in energy usage, reduction in natural resource depletion and lowering carbon dioxide emissions to the atmosphere.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
35 human-written examples
This seizure has undoubtedly saved lives.
News & Media
Most of this money has undoubtedly come from the collection of franchise fees.
News & Media
This innovation has undoubtedly helped PG Tips become the UK's number-one tea brand.
News & Media
Previous research in this field has undoubtedly improved understanding of the factors hindered overall efficiency of EBPR.
Science
The adoption of traffic lights in this country has undoubtedly given automobiling, as a popular pastime, a much-needed fillip.
News & Media
Expert writing Tips
Best practice
Use "this has undoubtedly" to confidently assert a point based on strong evidence or widely accepted knowledge. This phrase adds weight to your statements, making them more persuasive.
Common error
Avoid using "this has undoubtedly" excessively, as it can make your writing sound repetitive and less genuine. Vary your language by using synonyms like "certainly", "clearly", or "definitely" to maintain reader engagement.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this has undoubtedly" functions as an adverbial phrase that modifies a verb or clause, adding emphasis and conveying a strong sense of certainty. It indicates the speaker's or writer's firm belief in the truth or validity of the statement, according to Ludwig.
Frequent in
News & Media
48%
Science
36%
Formal & Business
16%
Less common in
Wiki
2%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "this has undoubtedly" is a useful tool for expressing certainty and conviction in writing. According to Ludwig, its grammatical status is correct, and it is commonly found in news and media, scientific publications, and formal business documents. While it is important to use it judiciously to avoid redundancy, as doing so would affect the quality of writing, the phrase serves to strengthen arguments and persuade audiences. Remember to consider context and audience when choosing this and similar phrases to achieve the intended effect.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
This has certainly
Replaces "undoubtedly" with "certainly", offering a slightly less emphatic assertion.
This has clearly
Substitutes "undoubtedly" with "clearly", emphasizing the obviousness of the situation.
This has definitely
Replaces "undoubtedly" with "definitely", indicating a firm and confident statement.
This has unquestionably
Uses "unquestionably" instead of "undoubtedly" to highlight the lack of doubt.
This has indisputably
Employs "indisputably" to stress that the matter is beyond dispute.
It is undoubtedly the case that this has
Rephrases the sentence to emphasize the factual nature using "it is undoubtedly the case".
There is no doubt that this has
Expresses certainty by stating "there is no doubt" about the situation.
This without a doubt has
Inserts "without a doubt" for emphasis, reordering the phrase slightly.
It's clear that this has
Uses a more informal tone by starting with "it's clear".
This assuredly has
Replaces "undoubtedly" with "assuredly", which is a more formal and less common synonym.
FAQs
What does "this has undoubtedly" mean?
The phrase "this has undoubtedly" means that something has certainly happened, and there's little to no room for doubt about it. It indicates a strong level of confidence in the statement being made.
What can I say instead of "this has undoubtedly"?
You can use alternatives like "this has certainly", "this has clearly", or "this has definitely" depending on the context.
Is it appropriate to use "this has undoubtedly" in formal writing?
Yes, "this has undoubtedly" is appropriate for formal writing, but be mindful of overuse. While it conveys certainty, varying your phrasing with synonyms like "this has certainly" or "there is no doubt that this has" can improve readability and prevent repetition.
How can I use "this has undoubtedly" in a sentence?
You can use "this has undoubtedly" to emphasize a point you are confident about, such as "This has undoubtedly been the toughest challenge the company has faced this year". Ensure the rest of the sentence supports your assertion.
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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