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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
a dangerous error
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a dangerous error" is correct and usable in written English.
It can be used to describe a mistake that poses a significant risk or threat in a particular context. Example: "The software update contained a dangerous error that could compromise user data security."
✓ Grammatically correct
News & Media
Science
Wiki
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
6 human-written examples
A dangerous error.
News & Media
This is both a prejudicial and a dangerous error.
News & Media
"That's a dangerous error, for President Trump to continue to trash John McCain," said Sen. Bill Nelson (D-Fla)., adding that McCain "is a guy who knows what he's talking about" when it comes to the military.
News & Media
Justice Alito warns that the majority makes a "dangerous error" in relying on the three-judge court's finding that a large release of prisoners will not jeopardize public safety.
News & Media
[r]eligion captures the very best and very worst of who we are, and to see only the best or the worst of religion is a dangerous error.
News & Media
The examiner will be wanting to see that your 'observing' if you don't observe then it will be marked down as a serious or a dangerous error.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
The numerical analysis you provided risked reinforcing the myth of the "statistical dead heat," a particularly dangerous error with the political polling season heating up again.
News & Media
The authors of that article, led by Dr. Atul A. Gawande, a surgeon, say that leaving objects behind is "an uncommon but dangerous error" that can lead to severe infections, organ damage and sometimes even death.
News & Media
On top of the already monumental mistakes and strategic miscalculations President Obama has been the architect of in addressing the Islamic State, it seems that an even more dangerous error is in the process of being engineered -- supporting the anti-American ayatollahs in Tehran as the protector of the Middle East from the Islamic State.
News & Media
Tucked away in the final book, on method, is a critique of "the most dangerous error of the ancients," namely, the Aristotelian position that there are secondary causes in nature distinct from God.
Science
California voters can rectify this dangerous error in judgment and common sense by voting to approve Proposition 97 at the Nov. 8 general election.
News & Media
Expert writing Tips
Best practice
When using "a dangerous error", clearly specify the potential consequences or risks associated with the error to provide context and emphasize its significance.
Common error
Avoid using "a dangerous error" when the mistake is minor or inconsequential. Choose more appropriate terms like "mistake" or "oversight" for less severe situations.
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a dangerous error" functions as a noun phrase, where "dangerous" modifies the noun "error". It identifies a specific type of mistake that carries significant risk. As confirmed by Ludwig, this phrase is correct and usable in written English.
Frequent in
News & Media
40%
Science
30%
Wiki
10%
Less common in
Formal & Business
10%
Academia
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "a dangerous error" is a grammatically sound and usable phrase that describes a mistake with potentially harmful consequences. As confirmed by Ludwig, it functions as a noun phrase and serves to warn or alert about significant risks. The phrase is most commonly found in news media and science contexts. While its use is less frequent in formal business or academic settings, it remains appropriate across various registers. When using this phrase, ensure you specify the potential consequences to emphasize the severity. Be mindful not to overstate the danger in minor situations.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a critical mistake
Emphasizes the severity and potential impact of the error.
a perilous oversight
Highlights the potential hazards resulting from neglecting something important.
a grave misjudgment
Focuses on the faulty decision-making that led to the error.
a high-risk fault
Underscores the level of danger and probability of negative consequences.
a severe blunder
Implies a significant and careless mistake.
a risky lapse
Highlights a temporary failure that carries potential danger.
an egregious mistake
Points out the shockingly bad and obvious nature of the error.
a fatal flaw
Suggests a defect that could lead to complete failure or ruin.
a disastrous slip-up
Focuses on the catastrophic consequences of a small mistake.
a damaging oversight
Emphasizes the harm or negative impact caused by neglecting something.
FAQs
How can I use "a dangerous error" in a sentence?
You can use "a dangerous error" to describe a mistake that could lead to serious harm or negative consequences. For example, "The software contained "a dangerous error" that could compromise user data".
What can I say instead of "a dangerous error"?
You can use alternatives like "a critical mistake", "a perilous oversight", or "a grave misjudgment" depending on the specific context.
Is it redundant to say "a very dangerous error"?
While not strictly redundant, adding "very" might be unnecessary. The word "dangerous" already implies a significant level of risk. Consider if the added emphasis is truly needed, or if "a critical mistake" would be more concise.
What's the difference between "a dangerous error" and "a potentially dangerous error"?
"A potentially dangerous error" suggests the error could become dangerous, while ""a dangerous error"" implies it already poses an immediate risk. The first suggests future possibility, the second, present danger.
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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
4.1/5
Expert rating
Real-world application tested