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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
without reasonable explanation
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "without reasonable explanation" is correct and usable in written English.
It can be used when discussing actions or decisions that lack a justifiable rationale or reasoning. Example: "The committee decided to reject the proposal without reasonable explanation, leaving the applicants confused and frustrated."
✓ 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
1 human-written examples
Without reasonable explanation, Beck has become a force in the land.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
The most arresting pictures are still the smaller, more fragmentary images that seem to have popped into the artist's consciousness without any reasonable explanation.
News & Media
As of March, those picking up their two-year-olds from the school's nursery programme can be charged £10 if they are 10 minutes late without a reasonable explanation.
News & Media
Prisoners are refusing to eat in protest against conditions in the detainment camp, the fact that the majority of them haven't even been charged with a crime – despite being held there for years – and because 86 prisoners have been cleared for release but are still being held without any reasonable explanation.
News & Media
6. Inappropriate or inconsistent urines: The presence on urine toxicological testing of opioids or other controlled substances (excluding cannabinoids) not prescribed by our clinic or pain program on at least two occasions without a reasonable explanation.
Science
If they talk for a while, but then say he/she has to go without a reasonable explanation (or makes up a "reasonable explanation" every time ), they're probably not a true friend.
Wiki
So far, he has uploaded 116 hours' worth of footage of him sitting, without giving any reasonable explanation.
News & Media
This is, of course, the most reasonable explanation, and it's also not without precedent.
News & Media
The new law would have broad impacts on asylum seekers already in the community, and would mean: People arriving without travel documents will be refused protection visas unless they can provide a "reasonable explanation" for not having identification.
News & Media
He may have a reasonable explanation.
News & Media
Braun might have a perfectly reasonable explanation.
News & Media
Expert writing Tips
Best practice
Use "without reasonable explanation" to express disapproval or confusion when someone's actions lack a clear or logical justification. This phrase works well in both formal and informal contexts.
Common error
While effective, relying too heavily on "without reasonable explanation" can make your writing sound repetitive. Vary your language by using synonyms like "inexplicably" or "without any justification" to maintain reader engagement.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "without reasonable explanation" functions as an adverbial modifier, typically describing the manner in which an action is performed or a state exists. It indicates the absence of a clear or justifiable reason behind something. As Ludwig AI confirms, this phrase is grammatically correct and usable.
Frequent in
News & Media
40%
Science
30%
Wiki
15%
Less common in
Formal & Business
5%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "without reasonable explanation" is a grammatically correct adverbial phrase used to express the lack of a clear or justifiable reason for an action or situation. Ludwig AI confirms its usability in written English. While its frequency is relatively rare, it appears across diverse contexts, including news, science, and wiki sources. Synonyms like "without justifiable cause" or "inexplicably" can offer variety in writing. Remember to use this phrase when you want to emphasize the absence of a valid rationale.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
without justifiable cause
Replaces "explanation" with "cause", focusing on the lack of valid reason.
without a valid reason
Substitutes "reasonable explanation" with a more direct expression of lacking a valid reason.
without due cause
Similar to "without justifiable cause", implying a lack of proper reason or grounds.
without any justification
Highlights the absence of a valid defense or excuse.
for no apparent reason
Emphasizes the absence of any visible or understandable reason.
without a clear rationale
Replaces "explanation" with "rationale", stressing the lack of logical basis.
unaccountably
A single-word adverb meaning "inexplicably" or "without explanation".
inexplicably
Adverb emphasizing the impossibility of explaining something.
unwarrantedly
Highlights the lack of necessity or justification for an action.
arbitrarily
Describes actions based on random choice or personal whim, rather than reason.
FAQs
What does "without reasonable explanation" mean?
The phrase "without reasonable explanation" means that something happened or was done without a clear, logical, or justifiable reason being provided.
When is it appropriate to use the phrase "without reasonable explanation"?
It is appropriate to use "without reasonable explanation" when you want to express that an action, decision, or event lacks a clear or understandable justification. It's useful when highlighting a lack of transparency or logic.
What are some alternatives to "without reasonable explanation"?
Some alternatives to "without reasonable explanation" include "without justifiable cause", "inexplicably", or "without any justification". The best choice depends on the specific context.
Is "without reasonable explanation" grammatically correct?
Yes, "without reasonable explanation" is grammatically correct and commonly used in written and spoken English to indicate a lack of understandable rationale.
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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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested