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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 one off exception
Grammar usage guide and real-world examplesUSAGE SUMMARY
'a one off exception' is a correct and usable phrase in written English.
It is used to refer to a special occasion or situation that occurs once and is not a regular occurrence. For example: "Due to the exceptional circumstances, we have made a one off exception and allowed the group into the park after closing time."
✓ Grammatically correct
Alternative expressions(20)
an isolated incident
a unique case
a rare instance
a singular occurrence
an atypical situation
an infrequent event
an unprecedented event
a one off case
a one time opt out
a one off exemption
a one time exemption
a one time emergency
a one time case
a unique exception
a one time departure
a one off exceptional
a one time waiver
a one time aberration
a one time exception
a one off defence
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
It's easy to imagine this sketch may have been a one-off exception, given the gag here is the denizens of the Arctic singing "Lullaby of Broadway".
News & Media
Matches up to the semi-final were contested on a one-off basis with the exception of the semi-finals which were contested over two-legs, with a match at each team's home ground.
Wiki
A private nuisance is normally a "continuing state of affairs", not a one-off situation; there are exceptions, such as in De Keyser's Royal Hotel v Spicer, where piledriving at night was considered a nuisance.
Wiki
The exception is a one-off episode set in Cornwall, where Dixon gets involved in a gripping 30mph car chase on an unfinished motorway.
News & Media
He was a one-off".
News & Media
But this was just a one-off.
News & Media
Nor will this be a one-off.
News & Media
Henry is a one-off among eccentrics.
News & Media
It was a one-off case".
News & Media
what a one-off Margaret Thatcher was.
News & Media
This was not just a one-off".
News & Media
Expert writing Tips
Best practice
Use "a one off exception" when you want to emphasize that a particular situation or event is not typical and won't be repeated. This phrase is effective for clarifying that a decision or action is not setting a precedent.
Common error
Avoid using "a one off exception" when describing recurring events or situations that happen regularly, even if infrequently. The phrase is meant to highlight singular, non-recurring instances.
Source & Trust
79%
Authority and reliability
3.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a one off exception" functions as a noun phrase that modifies another noun, emphasizing the singularity and non-recurring nature of the exception. Ludwig indicates that this is a grammatically correct phrase.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
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Ludwig's WRAP-UP
In summary, "a one off exception" is a grammatically correct phrase used to emphasize that a specific event or decision is a singular, non-recurring occurrence. Ludwig's analysis confirms its grammatical validity. While not particularly frequent, it serves to clarify that a situation should not be considered a precedent. Considering its limited usage data, diverse alternatives exist depending on context, ranging from "an isolated incident" to "an anomaly". Although the usage data is missing, remember to reserve this phrase for truly unique situations.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
an isolated incident
Focuses on the event being singular and not part of a pattern.
a singular occurrence
Emphasizes the uniqueness and infrequency of the event.
a unique case
Highlights that the situation is different from typical cases.
an atypical situation
Indicates that the situation deviates from the norm or expectation.
a rare instance
Stresses the infrequency of the event happening.
an infrequent event
Highlights that the event does not occur regularly.
a special circumstance
Emphasizes the particular conditions that make the event unusual.
a departure from the norm
Indicates a deviation from standard or expected behavior.
an unprecedented event
Highlights the event as having no prior occurrence.
an anomaly
Presents the event as something that deviates from the general rule or trend.
FAQs
How can I use "a one off exception" in a sentence?
You can use "a one off exception" to indicate that something is happening only once and is not part of a regular practice. For example, "The company made "a one off exception" to their policy due to the unusual circumstances".
What are some alternatives to "a one off exception"?
Alternatives to "a one off exception" include phrases like "an isolated incident", "a unique case", or "a rare instance", depending on the specific context.
Is it grammatically correct to say "a one off exception"?
Yes, "a one off exception" is grammatically correct. It is used to describe something that is an exception and only happens once.
When is it appropriate to use "a one off exception" versus "an exception"?
Use "a one off exception" when you want to emphasize that the exception is specifically a one-time occurrence and not part of a recurring pattern. "An exception" is more general and doesn't necessarily imply a singular event.
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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
79%
Authority and reliability
3.8/5
Expert rating
Real-world application tested