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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
is certainly not
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is certainly not" is correct and usable in written English.
You can use it to emphasize a strong negation or disagreement with a statement or idea. Example: "This proposal is certainly not the best solution for our current challenges."
✓ Grammatically correct
News & Media
Science
Formal & Business
Encyclopedias
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
McCain is certainly not.
News & Media
That is certainly not me.
News & Media
This is certainly not true.
News & Media
Sark is certainly not perfect.
News & Media
Myanmar is certainly not small.
News & Media
Cecconi is certainly not.
News & Media
Applied catalysis, is certainly not the exception.
But he is certainly not giving up.
News & Media
Euro membership is certainly not a panacea.
News & Media
This is certainly not chaotic behaviour.
Encyclopedias
Sears is certainly not unique.
News & Media
Expert writing Tips
Best practice
Use "is certainly not" to firmly and clearly negate a statement, leaving little room for doubt. This phrase is effective when you want to express strong disagreement or correction.
Common error
Avoid using "is certainly not" too frequently in casual conversations or informal writing, as it can sound overly formal or even confrontational. Opt for milder alternatives like "isn't really" or "isn't exactly" in less serious settings.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is certainly not" functions as a strong negation or denial. It emphatically contradicts a previous statement or assertion. As Ludwig AI confirms, it's a grammatically correct and usable English phrase. The examples show how it's used to express disagreement or to correct a misunderstanding.
Frequent in
News & Media
85%
Science
7%
Formal & Business
3%
Less common in
Encyclopedias
3%
Reference
1%
Wiki
1%
Ludwig's WRAP-UP
In summary, the phrase "is certainly not" serves as a potent tool for expressing strong negation or disagreement. As Ludwig AI indicates, it is grammatically sound and widely employed. Predominantly found in news and media sources, this phrase effectively communicates a firm stance against a preceding claim. While versatile, it's best used in contexts where a clear and emphatic denial is warranted, with consideration given to avoid overuse in more informal settings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is definitely not
Emphasizes the negation with the adverb 'definitely' instead of 'certainly'.
is absolutely not
Uses 'absolutely' to intensify the negation, conveying a stronger sense of certainty.
is undeniably not
Uses 'undeniably' to convey that the negation is indisputable and beyond question.
is simply not
Uses 'simply' to underscore the negation, suggesting the matter is straightforward.
is by no means
Emphasizes that something is not the case in any way or under any circumstances.
is not at all
Emphasizes the negation by indicating the absence of something to any degree.
is far from
Indicates a significant distance from being true or accurate.
is nowhere near
Similar to 'is far from' but perhaps more informal, stressing a great disparity.
is out of the question
Expresses that something is not possible or permissible.
is not an option
Indicates that something is not a viable choice or possibility.
FAQs
How can I use "is certainly not" in a sentence?
Use "is certainly not" to express a strong negation or disagreement. For example, "This solution "is certainly not" the best option for us."
What are some alternatives to "is certainly not"?
Alternatives include "is definitely not", "is absolutely not", or "is by no means". The best choice depends on the specific context and the level of emphasis you want to convey.
Is it better to use "is certainly not" or "is not certainly"?
"Is certainly not" is the correct and more common phrasing. "Is not certainly" is grammatically awkward and rarely used.
When is it appropriate to use "is certainly not" in writing?
It is appropriate to use "is certainly not" in formal writing, debates, or any situation where you need to strongly and clearly negate a statement. It's useful when precision and emphasis are required.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested