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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
happened unintentionally
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "happened unintentionally" is correct and usable in written English.
You can use it to describe an event or action that occurred without intention or planning. Example: "The mistake happened unintentionally, and we quickly corrected it."
✓ Grammatically correct
News & Media
Science
Academia
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
4 human-written examples
"It obviously happened unintentionally," he added.
News & Media
When Mr Maeda admitted this to his superiors, they are said to have ordered him to produce a report explaining how it happened "unintentionally".
News & Media
The court said paper work kept "in a desk drawer at home rather than at the government office" would not be exempt from public access, "no matter whether that happened unintentionally, negligently, or deliberately"—and indicated that the electronic format of documents would not alter the treatment of documents.
Academia
Nevertheless, the Turks were convinced that U.S. strategy planned for a fragmenting of their country as the Brits had intended after World War I, and as happened unintentionally with Bosnia and Kosovo more recently.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
Sometimes, this happens unintentionally: Conan Doyle's The Sign of the Four describes Watson as limping because of a war wound at his leg.
Science
While the first two paths may happen unintentionally, the third is for people who know they want to start a company, but don't yet have their idea.
News & Media
In contrast to the above interpretations, our analysis of the crowd disaster in Duisburg suggests the following: 1 It is the 'queuing effect' which causes a denser and denser queue of people over time[47], and a lot of pushing in the crowd happens unintentionally.
Science
As showed by Bhopal et al. in many situations it happens unintentionally, and the powerful people may be unaware of being included as author by their novice peers[ 20].
This can happen unintentionally, so don't rule it out!
Wiki
For us, it's all about the process". Although fans have continually requested more merchandise, particularly expanding into smaller leather products, this expansion into the footwear category happened quite unintentionally.
News & Media
Andy Grove, the former CEO of Intel, once wrote, "Just as you would not permit a fellow employee to steal a piece of office equipment, you shouldn't let anyone walk away with the time of his fellow managers". Of course, such thievery happens often, unintentionally.
News & Media
Expert writing Tips
Best practice
When writing about accidents or mistakes, use "happened unintentionally" to distinguish the event from deliberate actions. This can help mitigate blame and focus on the circumstances leading to the event.
Common error
Avoid using "happened unintentionally" when the context suggests negligence or a failure to take reasonable precautions. The phrase implies a lack of deliberate action, not a lack of responsibility. Be mindful of choosing words to avoid misrepresenting the circumstances.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "happened unintentionally" serves as an adverbial modifier, clarifying that an event occurred without intention. Ludwig indicates its correct usage, adding clarity by explicitly negating any planned aspect of the action or event.
Frequent in
News & Media
37%
Science
30%
Academia
15%
Less common in
Wiki
10%
Formal & Business
5%
Reference
3%
Ludwig's WRAP-UP
In summary, the phrase "happened unintentionally" is grammatically sound and serves to clarify that an event occurred without prior planning or deliberate intent. Ludwig confirms its correctness and provides various real-world examples across different contexts. While alternatives like "occurred inadvertently" or "took place accidentally" exist, "happened unintentionally" provides explicit clarity suitable for both formal and informal communication. The usage analysis reveals that it is a common and widely accepted phrase.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
occurred inadvertently
Emphasizes the accidental nature of the event, suggesting it happened due to oversight or a mistake.
took place accidentally
Highlights the unplanned and coincidental aspect of the occurrence.
arose by chance
Focuses on the role of randomness or luck in the event's occurrence.
transpired without intent
Formally states that the event occurred without any deliberate purpose.
unfolded unexpectedly
Stresses the unforeseen and surprising nature of how the event played out.
came about spontaneously
Indicates the event developed naturally and without external control.
resulted from oversight
Highlights negligence as the cause of the event's unintended occurrence.
emerged from neglect
Points to a lack of attention or care as the reason the event occurred unintentionally.
manifested coincidentally
Underscores that the event's appearance was a matter of pure coincidence.
developed fortuitously
Suggests the event unfolded in a way that, although unplanned, led to a positive outcome.
FAQs
How can I use "happened unintentionally" in a sentence?
Use "happened unintentionally" to describe an event that occurred without prior planning or deliberate action. For example, "The error "happened unintentionally" during the software update."
What are some alternatives to "happened unintentionally"?
You can use alternatives like "occurred inadvertently", "took place accidentally", or "arose by chance" to convey a similar meaning while varying your word choice. Remember to adapt the alternative to the specific context.
Is it redundant to say "happened unintentionally"?
While "happened" often implies a lack of intent, using "happened unintentionally" can provide emphasis and clarity, especially when it's important to distinguish the event from a deliberate action. The phrase is correct.
What's the difference between "happened unintentionally" and "happened intentionally"?
"Happened unintentionally" indicates that an event occurred without any prior planning or deliberate action, whereas "happened intentionally" suggests the event was planned and carried out with a specific purpose. Each version expresses opposite things.
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested