Used and loved by millions
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
remains unproven
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "remains unproven" is correct and usable in written English.
It can be used when discussing a claim, theory, or hypothesis that has not yet been substantiated or verified. Example: "The theory of dark matter remains unproven, leading scientists to continue their research in the field."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(20)
is willing to challenge
is likely to challenge
lacks substantiation
is up for discussion
is without evidence
is susceptible to challenge
can be challenged
is subject to constraints
is open to challenge
is free to challenge
is subject to appeal
remains untested
is open to dispute
is under scrutiny
is contestable
is liable to be contested
is not definitive
is open to conjecture
is subject to dispute
is vulnerable to criticism
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
58 human-written examples
Mr Butler says that this remains unproven.
News & Media
I really feel this remains unproven".
News & Media
The defense remains unproven but must improve.
News & Media
For now the ladder remains unproven.
News & Media
Isis claimed the attack, though its involvement remains unproven.
News & Media
(The hypothesis, regarding that bill at least, remains unproven).
News & Media
The report states that the strategy's effectiveness "remains unproven".
News & Media
Twenty-one inspections and the central charge remains unproven".
News & Media
Whether extravagant weddings really do buy bliss remains unproven.
News & Media
Our other striker John Guidetti has Ibrahimovic's self belief but remains unproven on the big stage.
News & Media
"We don't know the answer to the question yet and so it remains unproven," he said.
News & Media
Expert writing Tips
Best practice
When using "remains unproven", ensure you provide context as to why the subject lacks sufficient evidence or confirmation. This adds clarity and credibility to your statement.
Common error
Avoid using "remains unproven" as a definitive dismissal. It indicates a lack of current proof, not necessarily a falsehood. Acknowledge that future evidence may alter the conclusion.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "remains unproven" functions as an adjectival phrase. It modifies a noun or noun phrase, indicating that a particular claim, theory, or hypothesis has not been substantiated by evidence. Ludwig AI confirms the usage across diverse contexts.
Frequent in
Science
37%
News & Media
40%
Formal & Business
10%
Less common in
Wiki
4%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "remains unproven" is a versatile adjectival phrase employed to indicate that a statement or idea lacks sufficient evidence or validation. Ludwig AI identifies its frequent use across diverse fields like Science, News, and formal writing. The phrase highlights uncertainty rather than definitive falsehood and is generally used in a neutral to formal register. While grammatically correct, it is important to provide context and avoid overstating the implications of the "remains unproven" status. Alternative phrases like "is still unverified" can be used depending on the specific meaning you wish to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is still unverified
This alternative focuses on the lack of confirmation, replacing "remains" with "is still".
has not been verified
A direct synonym focusing on the lack of verification.
has yet to be demonstrated
This phrase emphasizes the absence of proof or evidence.
lacks substantiation
This option highlights the lack of supporting evidence.
is not yet confirmed
This suggests that the claim is awaiting validation.
is without evidence
Highlights the absence of supporting evidence for a claim.
is open to question
This indicates uncertainty and the possibility of doubt.
is still to be confirmed
Similar to "is not yet confirmed", but with slightly different emphasis.
continues to be questioned
Focuses on the ongoing doubt surrounding the claim.
is unestablished
Implies that the claim has not been firmly established or proven.
FAQs
How can I use "remains unproven" in a sentence?
You can use "remains unproven" to describe a theory, hypothesis, or claim that lacks sufficient evidence or verification. For example, "The link between the two events "remains unproven" despite numerous investigations."
What phrases are similar to "remains unproven"?
Alternatives include "is still unverified", "has yet to be demonstrated", or "lacks substantiation", depending on the nuance you want to convey.
Is it better to say "unproven" or "remains unproven"?
Using "remains unproven" suggests that the subject has been investigated or considered but hasn't yet been validated. "Unproven" is a more general term. The better choice depends on the specific context and whether prior attempts at verification have occurred.
What's the difference between "unproven" and "disproven"?
"Unproven" means there's a lack of sufficient evidence or has "yet to be confirmed", while "disproven" indicates evidence exists to show something is false. They are opposites.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested