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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
left unnoticed
Grammar usage guide and real-world examplesUSAGE SUMMARY
"left unnoticed" is a correct and usable phrase in written English.
You can use it when referring to a situation where someone or something is not noticed by others. For example, "The bird flew away, left unnoticed by anyone in the room."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
went unnoticed
slipped under the radar
escaped attention
was overlooked
was ignored
go unnoticed
went unheeded
proceed unnoticed
was not documented
was not derived
was not acknowledged
did not entry
was not recorded
was denied
did not incorporate
was not complied with
was not perceived
did not get through
was not achieved
was not recovered
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
12 human-written examples
Left unnoticed, it can change the way our brain works, causing OCD and schizophrenia, controlling who we think we are.
News & Media
Organisations will need the tools and talents to identify patterns of behaviour that, left unnoticed, could prove to be fatal to the health of the company.
News & Media
Some processes that take place on such interfaces have generally been left unnoticed when electrochemical impedance spectroscopy was used to study charge transfer process on these interfaces and charge transport process in these channels.
Science
By comparing young individuals below and above the age cutoff that gives eligibility to adult minimum wages, we are able to detect displacement effects that would have been left unnoticed if one would exploit variation between countries instead.
Science
But, in a statement, the Church said that though the women's action "cannot be left unpunished", if they showed penitence and reconsideration of their action their words "shouldn't be left unnoticed".
News & Media
If left unnoticed or untreated, this discoloration can spread deeper into the nail and to other surrounding toes.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
45 human-written examples
Their ensuing rows cause the guests to leave, unnoticed by the bickering Blisses.
News & Media
As they were taking their leave, unnoticed, Mrs. Bennet bellowed across the room: "Lizzy, hold out for at least six carats.
News & Media
[Nonetheless, the intelligence community did not leave unnoticed bin Laden's February 1998 declaration of war and intelligence reports indicating possible terrorist attacks inside the United States.
News & Media
Some say they could even enter South Korea, wreak havoc and leave unnoticed, dispersing, say, anthrax spores over a populated area or a military unit.In days the South's ministry of defence conjured up plans for GPS jamming devices, better heat detectors and more anti-aircraft guns along the border.
News & Media
A Kremlin source said it would "not leave unnoticed" the request from Sergiy Aksyonov.
News & Media
Expert writing Tips
Best practice
Use "left unnoticed" to emphasize the potential consequences of something not being observed or addressed. For example, "Left unnoticed, these subtle changes can lead to significant problems."
Common error
Avoid using "left unnoticed" in active voice constructions where it should be passive. For example, instead of "They left the problem unnoticed", write "The problem was left unnoticed by them."
Source & Trust
84%
Authority and reliability
4.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "left unnoticed" functions as an adjectival phrase, modifying a noun to describe something that has not been observed or recognized. Ludwig provides various examples demonstrating this function, highlighting its role in emphasizing the lack of attention given to something.
Frequent in
News & Media
40%
Science
40%
Formal & Business
10%
Less common in
Wiki
10%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "left unnoticed" is a phrase used to describe something that was not observed, recognized, or addressed, often implying a negative consequence. As Ludwig AI confirms, it's grammatically correct and usable in written English. While uncommon, the phrase appears across various contexts, from news and media to scientific publications. To enhance writing, ensure the sentence structure clearly defines what was "left unnoticed" and by whom. Alternative phrases such as "gone unremarked" or "passed without detection" can add nuance to your expression. Understanding these nuances will help in effective and clear communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
gone unremarked
Emphasizes the lack of commentary or discussion about something.
passed without detection
Highlights the failure to identify or notice something.
remained unobserved
Focuses on the state of not being seen or watched.
slipped under the radar
Suggests that something avoided attention, often intentionally.
evaded notice
Implies an active avoidance of being noticed.
escaped scrutiny
Highlights the lack of examination or investigation.
stayed invisible
Focuses on not being seen or made visible.
went unacknowledged
Emphasizes the lack of recognition or acceptance.
persisted unheeded
Highlights the neglect and ignoring of something
continued unperceived
Emphasizes that something was not grasped mentally or sensed physically
FAQs
How can I use "left unnoticed" in a sentence?
Use "left unnoticed" to describe something that was not observed or recognized. For instance, "The small crack in the foundation was "left unnoticed", leading to significant structural issues later on".
What are some alternatives to "left unnoticed"?
Alternatives include "gone unremarked", "passed without detection", or "remained unobserved", each emphasizing a slightly different aspect of not being noticed.
Is it better to say "left unnoticed" or "went unnoticed"?
Both ""left unnoticed"" and "went unnoticed" are grammatically correct, but "went unnoticed" implies something simply wasn't observed, while "left unnoticed" suggests something was actively ignored or allowed to pass without attention.
What does it mean for something to be "left unnoticed"?
When something is ""left unnoticed"", it means that it was not observed, recognized, or addressed, often implying a missed opportunity or potential negative consequence due to the lack of attention.
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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
84%
Authority and reliability
4.4/5
Expert rating
Real-world application tested