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
it is unknown
Grammar usage guide and real-world examplesUSAGE SUMMARY
'it is unknown' is correct and usable in written English.
You can use it to express that something is not known or understood at the present time. For example: "The cause of the fire is unknown."
✓ 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
60 human-written examples
It is unknown territory.
News & Media
It is unknown but bounded.
What will replace it is unknown.
News & Media
It is unknown what caused the avalanche.
News & Media
It is unknown how Prism actually works.
News & Media
It is unknown who was responsible.
News & Media
It is unknown to most around here.
News & Media
It is unknown how many are fraudulent.
News & Media
It is unknown whether related hawks stay together when migrating.
Academia
It is unknown how long the congress will last.
News & Media
It is unknown how long the recuperation period will last.
News & Media
Expert writing Tips
Best practice
Use "it is unknown" to introduce a statement of uncertainty, especially when presenting factual information or research findings. This establishes a clear and objective tone.
Common error
Avoid beginning multiple consecutive sentences with "it is unknown". Vary your sentence structure to maintain reader engagement and avoid monotony.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it is unknown" functions as an impersonal construction used to express a lack of knowledge or certainty about a particular fact or situation. As Ludwig AI confirms, this expression is commonly used in various contexts to introduce uncertainty.
Frequent in
News & Media
44%
Science
39%
Academia
10%
Less common in
Wiki
5%
Formal & Business
2%
Reference
0%
Ludwig's WRAP-UP
In summary, "it is unknown" is a versatile phrase used to express a lack of knowledge or certainty, especially in formal and objective contexts. As Ludwig AI confirms, its grammatical correctness and wide acceptance make it a reliable choice for academic writing, news reporting, and professional communication. While "it is unknown" is quite frequent across diverse sources, including News & Media, Science, and Academia, writers should avoid overuse and ensure variety in their sentence structures. Alternatives like "it is not known" or "it remains unclear" can add nuance and sophistication to your writing. Remember to use "it is unknown" when you want to maintain an objective and impersonal tone, particularly when presenting factual information or research findings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
it is not known
Rephrasing by negating "known" makes it semantically similar but emphasizes the lack of knowledge.
it remains unclear
Focuses on the ambiguity and lack of clarity surrounding a subject.
the answer is unclear
Highlights the absence of a definite answer or solution.
the details are uncertain
Emphasizes the vagueness and unreliability of the specific details.
the truth is elusive
Suggests that the truth is difficult to grasp or ascertain.
the facts are unconfirmed
Indicates that the facts have not been verified or corroborated.
we cannot determine
Shifts the focus to the inability of someone to make a determination.
we have no information
Highlights the lack of available information on a particular topic.
the data is inconclusive
Suggests that the data does not provide a clear or definitive answer.
it's a mystery
Infuses a sense of intrigue or bafflement regarding the unknown.
FAQs
How can I use "it is unknown" in a sentence?
You can use "it is unknown" to introduce a piece of information that is not yet determined or established. For example, "It is unknown whether the experiment will succeed".
What are some alternatives to saying "it is unknown"?
Alternatives include phrases like "it is not known", "it remains unclear", or simply, "we don't know" depending on the context and level of formality.
Is "it is unknown" formal or informal?
"It is unknown" is generally considered a neutral to formal expression. While acceptable in everyday speech, it's particularly suitable for academic, professional, and journalistic writing. For more informal contexts, consider simpler alternatives.
When should I use "it is unknown" instead of "I don't know"?
Use "it is unknown" when you want to present a statement of objective uncertainty, often in situations where personal knowledge is irrelevant. "I don't know" is more appropriate for expressing personal lack of knowledge.
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