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
regrettable lapse
Grammar usage guide and real-world examplesUSAGE SUMMARY
"regrettable lapse" is correct and usable in written English. You can use it to describe a mistake or oversight that is unfortunate or disappointing. Example: "The team's performance was affected by a regrettable lapse in communication." Alternative expressions include "unfortunate oversight" and "disappointing error."
✓ Grammatically correct
News & Media
Academia
Formal & Business
Alternative expressions(20)
unfortunate oversight
error in judgment
unfortunate error
careless mistake
costly mistake
serious miscalculation
counterproductive measure
huge miss
grave oversight
expensive moment
it cost me a lot of money
bad gamble
risky bet
unwise investment
imprudent decision
daring move
questionable decision
uncertain prospect
rash decision
dubious proposition
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
8 human-written examples
"Yes, that was a regrettable lapse in security".
News & Media
Jenkins's judicious narrative has one regrettable lapse: It gives short shrift to Bush v. Gore.
News & Media
It was a regrettable lapse by a respected and experienced broadcaster.
News & Media
Guido Westerwelle, the German foreign minister, opined that Mr Orbán's statement was "a regrettable lapse that we clearly reject".
News & Media
The Guardian also did the same last Saturday, which was described by the readers' editor as "a regrettable lapse".
News & Media
"But of course we must learn the lessons from what was a very regrettable lapse of security and that needs to be dealt with, and the lessons need to be learned".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
The food itself was generally exemplary, although there were regrettable lapses there, too.
News & Media
Are these judgments objective assessments, or regrettable lapses into tribalism, ethnocentrism, xenophobia, and prejudice?
News & Media
It was a regrettable oversight.
News & Media
Sexual indiscretions, regrettable financial missteps, or just severe lapses in judgement we all have at least one gnarly secret buried deep down in the depths of our souls, things we'd die of embarrassment if our loved ones found out.
News & Media
"Collect toenail clippings in a jar". Sexual indiscretions, regrettable financial missteps, or just severe lapses in judgement we all have at least one gnarly secret buried deep down in the depths of our souls, things we'd die of embarrassment if our loved ones found out.
News & Media
Expert writing Tips
Best practice
Pair the phrase with specific nouns like "security", "judgment", or "concentration" to provide clear context for the failure.
Common error
Avoid using redundant modifiers such as "a regrettable lapse of error". A "lapse" is already an error or deviation. Stick to simpler constructions like "a regrettable lapse in judgment".
Source & Trust
98%
Authority and reliability
4.9/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "regrettable lapse" functions as a noun phrase where the adjective "regrettable" modifies the noun "lapse". In the context provided by Ludwig, it acts as a polite euphemism for a mistake, often serving as the direct object in sentences involving security, judgment, or social conduct.
Frequent in
News & Media
75%
Formal & Business
15%
Academia
10%
Less common in
Social Media
5%
Science
3%
Wiki
2%
Ludwig's WRAP-UP
In conclusion, "regrettable lapse" is a highly effective phrase for professional communication. It provides a formal way to acknowledge a mistake—be it in security, judgment, or behavior—without sounding overly defensive or colloquial. Ludwig AI confirms that it is grammatically correct and widely used in high-authority sources like The Guardian and The New York Times. While it is classified as "uncommon" based on raw frequency counts, its impact in formal writing is significant, as it suggests a temporary deviation from excellence rather than a fundamental flaw. Writers should use it to navigate delicate situations where accountability must be balanced with professionalism.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
unfortunate oversight
Suggests the mistake was accidental or due to a lack of attention rather than a failure of judgment
disappointing error
Places more emphasis on the emotional reaction to the mistake
lamentable slip
Uses more literary language to describe a minor but regrettable mistake
unfortunate breach
Often used specifically in security or privacy contexts
momentary failing
Emphasizes the temporary nature of the mistake
error in judgment
Directly attributes the lapse to a decision-making failure
sad omission
Specifies that the error was something left out rather than a wrong action taken
deplorable mistake
A much stronger, more critical condemnation of the error
minor indiscretion
Often used for social or behavioral lapses rather than technical ones
brief relapse
Implies a return to a former bad habit or condition
FAQs
How do I use "regrettable lapse" in a sentence?
You can use it to describe an unfortunate mistake, such as: "The company apologized for what it called a "regrettable lapse" in its quality control procedures."
What is the difference between a "regrettable lapse" and an "unfortunate oversight"?
A "regrettable lapse" often implies a failure of character, judgment, or established standards, whereas an "unfortunate oversight" suggests something was simply forgotten or missed accidentally.
Is "regrettable lapse" considered formal?
Yes, it is a formal and sophisticated phrase frequently found in professional journalism and corporate communications to address errors politely but clearly.
Can I use "disappointing failure" instead?
Yes, but "disappointing failure" is more direct and blunt. Using "regrettable lapse" is slightly more nuanced as it suggests the failure was a temporary departure from an otherwise good performance.
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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
98%
Authority and reliability
4.9/5
Expert rating
Real-world application tested