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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
is unknown whether
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is unknown whether" is correct and usable in written English.
You can use it to describe something that has not been determined or is uncertain. For example, "It is unknown whether the new store will be open on the weekend."
✓ Grammatically correct
Science
News & Media
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
Though his biography is unknown today, his name remains a part of our cultural landscape.
News & Media
Although there is ample evidence that IRBC do accumulate in tissues, the mechanism of accumulation is unknown [26] [28].
Science
All of these pulmonary diseases display distinct gender preferences in presentation or a change in disease severity that occurs at puberty, the cause of which is unknown [14] [17].
Science
The function of the NHS protein is unknown (13).
Science
Renal cysts and pneumonitis have been described, but their frequency is unknown [25,26].
The functional consequence of otherwise anti-atherogenic small HDL in dyslipidemia, metabolic syndrome and atherosclerotic disease is unknown [28,29].
Science
However, the disease was not considered nationally notifiable during 1995 2012, so whether human leptospirosis is reemerging in the United States is unknown (10 ).
Science
The status of those arrested was unknown late today.
News & Media
The elastic constants that describe the fundamental elastic properties of NiTi martensites are unknown today.
Science
The condition of the workers, who were not identified by city officials, was unknown yesterday afternoon.
News & Media
Casualties at the warehouse, which was in ruins, were unknown early Thursday morning.
News & Media
Expert writing Tips
Best practice
When using "is unknown whether", ensure the sentence clearly states what is uncertain. For example: "It is unknown whether the treatment will be effective."
Common error
Avoid using "is unknown whether" when a more direct statement of fact is possible. If the information is simply unavailable, state that directly rather than implying a future resolution.
Source & Trust
60%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is unknown whether" functions as a connector introducing uncertainty or a lack of information about a specific condition or event. According to Ludwig AI, it is correct and usable in written English.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
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Ludwig's WRAP-UP
In summary, the phrase "is unknown whether" is a grammatically correct and usable construction for expressing uncertainty. It serves to introduce conditions or outcomes for which the facts are not yet available. While Ludwig AI confirms its validity, it's important to use it with precision, ensuring the context clearly conveys the uncertainty. Since no examples were found, the frequency is labeled as missing, indicating limited real-world examples in the analyzed dataset. The phrase suits neutral to formal contexts and invites further inquiry or investigation.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
it is uncertain if
Replaces "unknown" with "uncertain" and "whether" with "if", slightly altering the tone.
it is not known if
Substitutes "unknown whether" with "not known if", maintaining a formal tone.
it remains unclear if
Uses "remains unclear" to emphasize ongoing uncertainty, and replaces "whether" with "if".
it is undetermined if
Replaces "unknown" with "undetermined" adding emphasis on a formal context.
we do not know if
Switches from impersonal to personal form, which reduces the degree of formality.
the uncertainty surrounding
Shifts the focus to the presence of uncertainty, instead of directly stating a lack of knowledge.
the situation is yet to be clarified
Focuses on the need for clarification, rather than a lack of knowledge.
the details are not yet available
Highlights the absence of specific information, implying a lack of certainty.
the answer is still elusive
Implies a difficulty in finding the answer, indicating a degree of mystery.
it's a mystery whether
Uses the term "mystery" to create a more informal and intriguing tone.
FAQs
How to use "is unknown whether" in a sentence?
Use "is unknown whether" to introduce a situation where the outcome or truth is not yet established or discovered. For example, "It is unknown whether the project will succeed".
What can I say instead of "is unknown whether"?
You can use alternatives like "it is uncertain if", "it is not known if", or "it remains unclear if" depending on the specific nuance you want to convey.
Which is correct, "is unknown whether" or "is not known whether"?
Both "is unknown whether" and "is not known whether" are grammatically correct. However, "is unknown whether" is slightly more formal. The best choice depends on the context and desired tone.
What's the difference between "is unknown whether" and "is uncertain whether"?
"Is unknown whether" emphasizes a complete lack of knowledge, whereas "is uncertain whether" suggests there may be some information, but it's not definitive or reliable. The choice depends on the level of confidence in the available information.
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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
60%
Authority and reliability
4.1/5
Expert rating
Real-world application tested