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
unfortunate mistake
Grammar usage guide and real-world examplesUSAGE SUMMARY
"unfortunate mistake" is correct and usable in written English. You can use it to describe an error that has negative consequences or is regrettable. Example: "It was an unfortunate mistake that led to the project's delay." Alternative expressions include "regrettable error" and "unlucky blunder."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(20)
unintended error
careless mistake
inadvertent error
unexpected mistake
accidental mistake
inadvertent mistake
negligent oversight
unforeseeable error
accidental error
unintended errors
unintended mistake
involuntary error
unwanted error
negligent error
preventable mistake
oversight
lapse in judgment
slip-up
careless errors
rudimentary mistake
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
58 human-written examples
It was an unfortunate mistake.
News & Media
We regard this as an unfortunate mistake.
News & Media
It was a very unfortunate mistake".
News & Media
In the eyes of many observers, the defense then made an unfortunate mistake.
Academia
Perhaps it was my permanent wave, which was a truly unfortunate mistake.
News & Media
Now, in a surprising twist, they have said that the whole affair was an unfortunate mistake.
News & Media
But the police watchdog concluded he made "an unfortunate mistake" and cleared him of misconduct.
News & Media
Even iconic keepers such as Hugo Orlando Gatti saw their standing undermined by one unfortunate mistake.
News & Media
A third is simply that he has made the unfortunate mistake of making statements that can be easily contradicted.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
Speed + constantly checking Ukrainian spellings = unfortunate mistakes.
News & Media
Then there's been a lot of unfortunate mistakes, myself included.
News & Media
Expert writing Tips
Best practice
When using "unfortunate mistake", be specific about the mistake and its consequences to provide clarity and context for your audience.
Common error
Avoid using "unfortunate mistake" as a generic apology without acknowledging the specific error and its impact. Instead, clearly state the mistake and take responsibility for it to build trust and demonstrate accountability.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "unfortunate mistake" functions as a noun phrase, typically acting as the subject complement or object of a sentence. It identifies a specific error and characterizes it as regrettable. As Ludwig AI highlights, the examples demonstrate its use in describing errors across various domains.
Frequent in
News & Media
69%
Science
14%
Academia
5%
Less common in
Wiki
3%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "unfortunate mistake" is a commonly used and grammatically correct expression to describe a regrettable error. Ludwig AI confirms its proper usage and wide acceptance. The phrase is most frequently found in news and media, as well as scientific and academic contexts. While various alternatives exist, such as "regrettable error" and "lamentable error", "unfortunate mistake" remains a versatile and widely understood way to express disappointment about an error and acknowledge its impact. It is important to use the phrase specifically and avoid vague apologies when conveying this phrase.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
regrettable error
Replaces "unfortunate" with "regrettable", emphasizing the feeling of sorrow or disappointment about the mistake.
lamentable error
Substitutes "unfortunate" with "lamentable", highlighting the sorrowful or mournful nature of the mistake.
grievous error
Replaces "unfortunate" with "grievous", stressing the serious or grave nature of the mistake.
unlucky blunder
Uses "blunder" instead of "mistake", suggesting a clumsy or careless error influenced by bad luck.
regrettable oversight
Replaces "mistake" with "oversight", indicating a failure to notice or consider something.
unintended error
Replaces "unfortunate" with "unintended", focusing on the lack of deliberate intent behind the mistake.
costly error
Replaces "unfortunate" with "costly", highlighting the negative consequences or expense resulting from the mistake.
avoidable error
Emphasizes the preventable nature of the mistake, suggesting it could have been avoided with better planning or care.
careless mistake
Highlights a lack of diligence or attention as the cause of the mistake.
inadvertent error
Focuses on the unintentional nature of the mistake, similar to "unintended error".
FAQs
How can I use "unfortunate mistake" in a sentence?
You can use "unfortunate mistake" to describe an error that had negative consequences. For example, "The project delay was an unfortunate mistake resulting from poor planning".
What can I say instead of "unfortunate mistake"?
You can use alternatives like "regrettable error", "lamentable error", or "unlucky blunder" depending on the context.
Is it better to say "unfortunate mistake" or "error"?
Both are correct, but "unfortunate mistake" emphasizes the negative consequences or regret associated with the error, while "error" is more neutral. Choose the phrase that best fits the tone you want to convey.
What is the difference between "unfortunate mistake" and "accident"?
"Unfortunate mistake" implies an error or oversight that led to a negative outcome, while "accident" suggests an unintentional event that caused harm or damage. A mistake is often preventable, while an accident may be unavoidable.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested