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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
in all certainty
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "in all certainty" is correct and usable in written English.
It is used to give emphasis to an assertion. For example, "In all certainty, I can confidently say that this is the best choice for the project."
✓ Grammatically correct
News & Media
Science
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
4 human-written examples
At 2-1 up, a perfectly good goal was hooked from the Fulham net, and disallowed: the linesman had fallen over, while referee Jack Taylor (later to take charge of the 1974 World Cup final) was hanging around in the centre circle and decided he couldn't award the goal in all certainty.
News & Media
This, in all certainty, will lead to ever-more numerous protests about which officials high and low will continue to lie to themselves and to their superiors — until they can lie no more, because they and their jobs will have been swept away by the rage they are trying to lie out of existence.
News & Media
Constantine Michalos, chairman of the Athens Chamber of Commerce, told BBC Radio : "I think in all certainty within the next 10 days we will have this transitional national unity government that we need to safeguard the interests of the Greek economy and of the European economy".
News & Media
There can be no true joy or contentment in believing that what lies ahead will, in all certainty, generate more suffering.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
This distinction is an important one in philosophy of science, as it relates to the lack of absolute certainty in all empirical claims, not just evolution.
Wiki
Have fun: start-ups are risky as hell and, in almost all certainty, a terrible investment of your time.
News & Media
All useful certainty lives in a penumbra of doubt.
News & Media
The Scot is existing in a state of flux at the moment, with all the certainties in his life and his game swept away.
News & Media
"That is why we say 'in all certainty', because there is no sign pointing in another direction.
News & Media
All certainties are lost in this twilight zone.
News & Media
The symphony's sense of inhabiting a twilight world in which all the old certainties were being questioned and found wanting - two of its most disconcerting movements are labelled "Nachtmusik" - perhaps led to its nickname, The Song of the Night.
News & Media
Expert writing Tips
Best practice
Use "in all certainty" to add emphasis to a statement when you want to convey a strong sense of confidence or assurance. However, be mindful of the context; overuse can make your writing sound overly assertive.
Common error
Avoid using "in all certainty" when the situation involves inherent uncertainty or risk. Overstating your confidence in uncertain situations can damage your credibility. Always ensure your level of certainty aligns with the actual evidence available.
Source & Trust
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "in all certainty" functions as an adverbial phrase that modifies a verb or clause, expressing a high degree of confidence or assurance. Ludwig AI indicates this phrase is correct and usable, reinforcing its function in emphasizing a statement.
Frequent in
News & Media
75%
Science
25%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "in all certainty" is a grammatically correct adverbial phrase used to express a strong sense of confidence or assurance. Ludwig AI confirms its validity and usability in written English. While the phrase is relatively rare, it appears most frequently in news and media contexts. Alternatives such as "without a doubt" or "undoubtedly" may be used depending on the desired level of emphasis and formality. When using "in all certainty", writers should ensure their confidence is well-founded and appropriate for the context to avoid overstating their position.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
without a doubt
Emphasizes the lack of uncertainty or question.
undoubtedly
Expresses a firm conviction about the truth of something.
definitely
Indicates a clear and certain affirmation.
assuredly
Highlights the confidence and sureness in a statement.
beyond question
Suggests that something is so certain it cannot be doubted.
most assuredly
Offers a stronger, more emphatic version of "assuredly".
without question
Emphasizes the lack of any doubt or uncertainty.
positively
Conveys a sense of absolute certainty and affirmation.
for sure
A more informal way to express certainty.
in all likelihood
Indicates a high probability, though slightly less firm than absolute certainty.
FAQs
How can I effectively use "in all certainty" in a sentence?
Use "in all certainty" to strongly assert a fact or prediction. For example, "In all certainty, the project will be completed on time." Be aware, it is an emphatic phrase, use it when you want to remove any doubt from the statement.
What are some alternatives to "in all certainty"?
Alternatives include "without a doubt", "undoubtedly", "definitely", or "assuredly", depending on the context and desired level of formality.
Is "in all certainty" appropriate for formal writing?
Yes, "in all certainty" is suitable for formal writing. However, consider the specific tone and audience, as it can sound quite assertive. Alternatives like "in all likelihood" might be preferable in some contexts.
What's the difference between "in all certainty" and "in all probability"?
"In all certainty" conveys a stronger sense of assurance than "in all probability". The former suggests near-absolute confidence, while the latter indicates a high likelihood but acknowledges a degree of uncertainty.
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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
4.1/5
Expert rating
Real-world application tested