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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
remain unknown
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "remain unknown" is correct and usable in written English.
You can use it in situations where you are talking about something (person, event, etc.) whose facts or details are still not known. For example: The origins of the mysterious creature remain unknown.
✓ Grammatically correct
News & Media
Science
Encyclopedias
Wiki
Alternative expressions(18)
are still uncertain
are not yet known
stay undisclosed
are unconfirmed
have not been revealed
are yet to be discovered
are still unresolved
be up in the air
remain ambiguous
still uncertain
persist in doubt
still remains uncertain
remain uncertain
remain unfamiliar
stay unresolved
linger unresolved
remain unconfirmed
remains uncertain
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
60 human-written examples
Their whereabouts remain unknown.
News & Media
The reasons remain unknown.
News & Media
His whereabouts remain unknown.
News & Media
Elsewhere they remain unknown.
Encyclopedias
Kotey's whereabouts remain unknown.
News & Media
Qadaffi's whereabouts remain unknown.
News & Media
The causes remain unknown.
News & Media
His motives remain unknown.
News & Media
The identity would remain unknown.
News & Media
The donor could remain unknown.
News & Media
Mullah Omar's whereabouts remain unknown.
News & Media
Expert writing Tips
Best practice
When using "remain unknown", ensure the context clearly indicates what specific information is lacking. This enhances clarity and avoids ambiguity for the reader.
Common error
Avoid using "remain unknown" when a more specific term, such as "unconfirmed" or "unresolved", would provide a more accurate and nuanced description of the situation.
Source & Trust
84%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "remain unknown" functions as a predicate adjective, describing the state of a subject as lacking known information. Ludwig AI confirms its correct usage. For example, "Their whereabouts remain unknown."
Frequent in
News & Media
52%
Science
35%
Wiki
7%
Less common in
Encyclopedias
4%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
The phrase "remain unknown" is a versatile and commonly used expression to indicate a lack of information or certainty. As confirmed by Ludwig AI, it's grammatically sound and applicable across diverse contexts. Its frequent usage in News & Media and Science highlights its importance in reporting on unresolved matters and scientific inquiries. While alternatives exist, "remain unknown" provides a clear and direct way to communicate that knowledge is currently absent. When employing this phrase, ensuring the context is clear about what specifically is unknown helps maintain clarity and precision in writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
are not yet known
A direct alternative emphasizing the absence of current knowledge.
are unconfirmed
Indicates that the information has not been verified or validated.
stay undisclosed
Focuses on the lack of disclosure or revelation.
have not been revealed
Focuses on the act of revealing and the lack thereof.
are still uncertain
Highlights the uncertainty and lack of clarity surrounding the subject.
continue to be a mystery
Emphasizes the mysterious nature and lack of understanding.
are yet to be discovered
Suggests that discovery is possible, but has not happened yet.
are still unresolved
Suggests an ongoing issue where a solution or answer is pending.
persist in obscurity
Highlights the continued lack of clarity or fame.
are shrouded in secrecy
Emphasizes the deliberate concealment of information.
FAQs
How can I use "remain unknown" in a sentence?
The phrase "remain unknown" is used to indicate that certain facts or details about a subject are not yet known. For example, "The motives of the perpetrator "remain unknown"."
What's a good alternative to "remain unknown"?
Alternatives to "remain unknown" include "are still uncertain", "are not yet known", or "stay undisclosed", depending on the specific context.
Is it correct to say "remains unknown" instead of "remain unknown"?
No, "remains unknown" is only correct when referring to a singular subject. For plural subjects, ""remain unknown"" is the correct form.
What does it mean when something "remain unknown"?
When something ""remain unknown"", it signifies that the details, causes, or whereabouts related to that thing are currently not known or have not been discovered yet.
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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
4.6/5
Expert rating
Real-world application tested