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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
reason not available
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "reason not available" is correct and usable in written English.
It can be used in contexts where an explanation or justification is not provided or is inaccessible. Example: "Due to unforeseen circumstances, the reason not available for the delay in the project will be communicated later."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(2)
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
2 human-written examples
In one photograph (for some reason not available for reproduction in the press) featuring the popular harem motif, two reclining women hold musical instruments, but the third is doing the artist's model equivalent of "phoning it in".
News & Media
Also be aware of the fact they might also specify some other reason not available in the list.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
In contrast to realism, constructivism holds that the principles of reason are not available to us by intuition or introspection.
Science
Soft sensors are mathematical models that use available data to provide real-time information on process variables when the information, for whatever reason, is not available by direct measurement.
Science
Until I reminded myself how often the same poems decided that beauty — like the chance of a happier life — was, for complicated reasons, generally not available to the "I" that created them.
News & Media
This year, she said, "We are keeping our stance on using as much Hokkaido produce as we possibly can, and if for some reason items are not available within our area, we are then making the decision to source overseas".
News & Media
They are more expensive than the male condoms and that could be the reason they are not available for us to give to clients".
Science
Reasons for limited participation, as indicted by young people, include the prevailing political situation, economic reasons, activity is not available and / or accessible, lack of free time and objection of guardians.
Formal & Business
The Guardian understands that one of the primary reasons Glass is not available outside the US is due to the requirements of localisation for language, accent and regional differences in units – although Google's voice search is currently available in localised versions in many countries outside the US including the UK.
News & Media
One subject discontinued the study prematurely during the first phase due to family reasons and was not available for the last two ophthalmological observations.
Virological studies (serum HCV-RNA detection, viral load, and genotype) were carried out according to clinical reasons and were not available in all patients.
Expert writing Tips
Best practice
When using "reason not available", ensure the context clearly indicates why the reason is unavailable (e.g., confidentiality, data limitations, ongoing investigation).
Common error
Avoid using "reason not available" excessively without providing any context or indication of where further information might be obtained, as this can frustrate the reader.
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "reason not available" functions as a statement indicating that an explanation or justification for a particular situation or action is missing or inaccessible. As Ludwig AI confirms, the phrase is grammatically correct and usable.
Frequent in
Science
40%
News & Media
30%
Formal & Business
20%
Less common in
Wiki
5%
Encyclopedias
3%
Reference
2%
Ludwig's WRAP-UP
In summary, the phrase "reason not available" is a grammatically sound and widely used expression to indicate that an explanation or justification is currently inaccessible or cannot be provided. As noted by Ludwig, its usage spans various contexts, including news, science, and formal communications. While appropriate for formal and informal settings, it's advisable to provide context when possible. For alternative expressions, consider options such as "explanation unavailable" or "justification not provided" depending on the specific nuance.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
no explanation given
Simply states that an explanation wasn't offered.
explanation unavailable
Focuses on the absence of a detailed account or clarification.
no justification offered
Simply states that a justification wasn't offered.
justification not provided
Emphasizes the lack of a valid or acceptable rationale.
rationale undisclosed
Highlights that the underlying logic or purpose has not been revealed.
basis not shared
Indicates that the fundamental reason or support is not being communicated.
cause unstated
Points out that the origin or reason has not been explicitly mentioned.
grounds unspecified
Stresses that the specific reasons or conditions haven't been detailed.
the motive is unknown
Suggests the reason behind something is a mystery.
the impetus is unclear
Implies a lack of understanding regarding the driving force or initial cause.
FAQs
How can I use "reason not available" in a sentence?
You can use "reason not available" to indicate that an explanation cannot be provided, as in, "The "reason for the delay" is currently not available."
What does "reason not available" mean?
"Reason not available" means that the explanation or justification for something is not currently accessible or cannot be disclosed.
Is it appropriate to use "reason not available" in formal writing?
Yes, "reason not available" is suitable for formal writing when it's necessary to acknowledge that an explanation is lacking or cannot be shared. Be sure to provide context if possible.
Are there alternative ways to say "reason not available"?
Yes, you can use phrases like "explanation unavailable", "justification not provided", or "rationale undisclosed" depending on the specific nuance you want to convey.
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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
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested