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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
is not yet certain
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is not yet certain" is correct and usable in written English.
You can use it when discussing something that has not been confirmed or established at the present time. Example: "The outcome of the experiment is not yet certain, but we are hopeful for positive results."
✓ Grammatically correct
News & Media
Encyclopedias
Science
Alternative expressions(20)
is yet to be explained
is yet to be clarified
is contingent on
remains unconfirmed
is still to be determined
has not been confirmed
is still unconfirmed
is still uncertain
is yet to be determined
is not yet clear
is yet to be confirmed
is yet to be proven
is not yet fixed
is awaiting confirmation
is yet to be investigated
is still unknown
is yet to be convinced
is yet to be validated
remains unclear
is yet to be demonstrated
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
57 human-written examples
The future direction of NeochaEdge is not yet certain.
News & Media
However a green light is not yet certain.
News & Media
Even the money part is not yet certain.
News & Media
Although it is not yet certain, there might be an adaptive explanation for this behaviour.
Encyclopedias
It is not yet certain that the country can go it alone.
News & Media
They may now get to compete in Euro 2012, though that is not yet certain.
News & Media
The exact composition of next year's Senate is not yet certain.
News & Media
It is not yet certain which tiles, if any, actually came from American Encaustic.
News & Media
How the new venture's efforts will mesh with these other projects is not yet certain.
News & Media
But it is not yet certain that they will join forces.
News & Media
Of course, a slowdown in the economy is not yet certain.
News & Media
Expert writing Tips
Best practice
Use "is not yet certain" to convey that a situation or outcome is still subject to change or has not been definitively confirmed. This is especially useful in academic writing, news reports, and formal communication where precision is important.
Common error
While "is not yet certain" is grammatically correct, it can sound overly formal in casual conversation. In informal settings, consider using simpler alternatives like "we don't know yet" or "it's still up in the air" to maintain a more relaxed tone.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is not yet certain" functions as a hedge, expressing a degree of uncertainty or tentativeness about a statement. As Ludwig AI confirms, this phrase is grammatically correct. Examples show it commonly prefaces statements subject to future confirmation.
Frequent in
News & Media
54%
Science
26%
Encyclopedias
12%
Less common in
Formal & Business
4%
Wiki
2%
Social Media
2%
Ludwig's WRAP-UP
In summary, "is not yet certain" is a versatile phrase used to express uncertainty across various contexts. As Ludwig AI reports, the phrase is grammatically sound and sees frequent use in formal writing. Its prevalence in "News & Media", "Science", and "Encyclopedias" highlights its appropriateness for reporting tentative information or qualified conclusions. While alternatives like "remains to be seen" or "is still uncertain" exist, the choice depends on the desired nuance. When writing, remember to reserve this phrase for situations where formal tone and precision are important, opting for simpler language in casual contexts.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is still uncertain
Replaces "yet" with "still", indicating ongoing uncertainty.
is not definite
Uses "definite" to express the lack of certainty, simpler phrasing.
remains unclear
Focuses on the lack of clarity or understanding, a different nuance of uncertainty.
is still unknown
Highlights the absence of knowledge about the matter.
remains to be seen
Emphasizes that the outcome is still in the future and needs to unfold to be known, less direct.
hasn't been determined
Focuses on the lack of a decision or resolution.
is up in the air
An idiomatic expression suggesting that the matter is unresolved and subject to change.
is pending confirmation
Indicates that the matter requires further validation or approval.
is subject to change
Highlights the possibility of alterations or modifications.
is contingent on
Suggests that the certainty depends on specific conditions being met.
FAQs
How can I use "is not yet certain" in a sentence?
You can use "is not yet certain" to express uncertainty about a future event or outcome. For instance, "Whether the project will be successful "is not yet certain", but we are working hard to achieve our goals."
What are some alternatives to "is not yet certain"?
Alternatives include "remains to be seen", "is still uncertain", or "is not definite". The best choice depends on the specific context and the nuance you want to convey.
Is it better to say "is not yet certain" or "is not certain yet"?
"Is not yet certain" is the more standard and frequently used phrasing. While "is not certain yet" is understandable, it can sound slightly less formal. Therefore, "is not yet certain" is often preferred in formal writing.
What's the difference between "is not yet certain" and "is still uncertain"?
Both phrases convey uncertainty, but "is not yet certain" suggests that the situation might become clear in the future, while "is still uncertain" implies that the uncertainty has persisted for some time. The choice depends on whether you want to emphasize the potential for future clarity or the duration of the uncertainty.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested