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
with reasonable confidence
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "with reasonable confidence" is correct and usable in written English.
It can be used when expressing a belief or assertion that is supported by sufficient evidence or rationale, but not absolute certainty. Example: "Based on the data collected, we can say with reasonable confidence that the new marketing strategy will increase sales."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(1)
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
You could buy the machine with reasonable confidence that one of them will suit you.
News & Media
TWO things can be said with reasonable confidence about the confused events in Fiji.
News & Media
Given the essential elusiveness of goodness, why not focus on something we can judge with reasonable confidence?
News & Media
I can say this with reasonable confidence, because I've spent several years travelling in search of the remaining wild places of these islands.
News & Media
Though one can say, with reasonable confidence, that rich people tend to be happier than poor people, there's surprisingly little evidence that becoming richer actually increases people's happiness.
News & Media
Nevertheless, despite these limitations and uncertainties, VSEPR theory is a useful rule of thumb and can be used with reasonable confidence for numerous species.
Encyclopedias
It took a while to get here, but it is now possible to say with reasonable confidence that the families of victims of the terrorist attacks will be fairly compensated.
News & Media
Of course, the question is better suited to a challenger than an incumbent, and Mr. Reagan could ask it with reasonable confidence that most voters would answer no; it is doubtful whether that same certainty exists for President Bush.
News & Media
From my own recent soundings in Europe, I can conclude with reasonable confidence that every one of the other 27 states of the EU desperately wants us to "Remain".
News & Media
So, mindful that my glimpse into the new year is but a stab in the dark, I think we can still predict with reasonable confidence that 2016 will be every bit as difficult as 2015.
News & Media
But amid all the uncertainties, one thing that can be said with reasonable confidence is that Cameron has reduced his chances of being Prime Minister after the next General Election.
News & Media
Expert writing Tips
Best practice
Use "with reasonable confidence" to express a professional judgement in formal contexts, especially when absolute certainty is not possible.
Common error
Avoid using "with reasonable confidence" when your claim is based on limited or weak evidence. Overstating your confidence can undermine your credibility.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "with reasonable confidence" functions as an adverbial phrase, modifying a verb or clause to indicate the degree of certainty or assurance with which an action is performed or a statement is made. Ludwig's examples confirm this usage across various contexts.
Frequent in
Science
42%
News & Media
35%
Formal & Business
10%
Less common in
Encyclopedias
2%
Wiki
2%
Reference
0%
Ludwig's WRAP-UP
The phrase "with reasonable confidence" is a versatile adverbial phrase used to express a qualified assertion, indicating a strong belief supported by evidence without claiming absolute certainty. Ludwig AI confirms its grammatical correctness and widespread usage across diverse contexts. Predominantly found in scientific and news media sources, it conveys objectivity and precision. When employing this phrase, it's crucial to ensure your statements are backed by solid reasoning to maintain credibility and avoid overstating your level of assurance. Alternatives such as "with a fair degree of certainty" or "with a solid level of assurance" can be used depending on the specific nuance you wish to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
with justifiable confidence
Direct synonym providing similar meaning.
with justified certainty
Similar to "with a fair degree of certainty", but stresses the justification for the certainty.
with a fair degree of certainty
Replaces "reasonable confidence" with "fair degree of certainty", emphasizing the level of assurance.
with a solid level of assurance
Substitutes "reasonable confidence" with "solid level of assurance", highlighting the strength of the belief.
with good reason to believe
Emphasizes the justification for the belief rather than the degree of confidence itself.
on the basis of strong evidence
Focuses on the supporting evidence, implying a well-founded confidence.
with substantial justification
Highlights the significant reasons supporting the confidence.
with considerable grounds for optimism
Shifts the focus to optimism, while still implying a reasonable basis for it.
with well-founded expectations
Emphasizes that the expectations are based on solid foundations.
in all likelihood
This alternative express a probability with the same meaning.
FAQs
How can I use "with reasonable confidence" in a sentence?
You can use "with reasonable confidence" to express a belief or assertion supported by evidence but not absolute certainty. For example, "Based on the trials, we can say "with reasonable confidence" that the drug is effective."
What phrases are similar to "with reasonable confidence"?
Alternatives include "with a fair degree of certainty", "with a solid level of assurance", or "with good reason to believe". The best choice depends on the specific context.
Is it appropriate to use "with reasonable confidence" in academic writing?
Yes, "with reasonable confidence" is suitable for academic writing when you want to express a conclusion that is well-supported but not definitively proven. It acknowledges the inherent uncertainties in research while still conveying a strong degree of belief.
What distinguishes "with reasonable confidence" from "with certainty"?
"With certainty" implies absolute, undeniable proof, while "with reasonable confidence" suggests a strong belief based on available evidence, acknowledging that some level of uncertainty remains. Choose the phrase that accurately reflects the strength of your evidence.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested