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
uncertain regarding
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "uncertain regarding" is correct and usable in written English.
It can be used when expressing doubt or lack of clarity about a particular subject or issue. Example: "She was uncertain regarding the best course of action to take in the situation."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(7)
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
24 human-written examples
In general, there are uncertain regarding new technologies and fear negative long-term effects on health.
For instance, users may be uncertain regarding what model to use to assess the effects of climate changes on the dormancy of Sassafras randaiense Hay.
Science
The effect of anatomic contour design in all or parts of zirconia crowns is uncertain regarding clinical reliability and survival rates.
This suggests that as well as being uncertain about the horizontal location of the kerb-edge, participants also became uncertain regarding precise floor height when stepping down if lvf information was occluded during the penultimate step before the kerb-edge.
Science
Occlusion of the lvf from the instant of penultimate step contact had a significant effect on foot clearance and on several kinematic measures, with findings consistent with participants becoming uncertain regarding relative horizontal location of the kerb-edge.
Science
The significant change in kneedrop distance and timing suggests participants prepared for landing earlier [10] when they were uncertain regarding precise height and location of the floor area they were stepping down to.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
36 human-written examples
If you're nervous or uncertain, regard clear speech as a courtesy to your listener.
Wiki
After his lucid tirade about prize-giving at festivals, my view on The Social Network and Carlos (for which he may have been calling me out, given my review of both films during the 48th NYFF) remains unchanged, though I will ever after look upon award announcements with an uncertain regard, as it were.
News & Media
If Mr. Letterman decides to stay with CBS, ABC will be in an uncertain situation regarding its late-night schedule.
News & Media
The drama is about Wilbur's uncertain fate regarding the slaughterhouse and Charlotte's clever idea, which renders him a prize pig and assures him a place on the farm forever.
News & Media
As Mr. Curry learned after telling others about his diagnosis, "Most people will understand or at least be willing to learn about the things they are uncertain of regarding H.I.V".
News & Media
Expert writing Tips
Best practice
When using "uncertain regarding", ensure the context clearly specifies what the uncertainty pertains to. Vague usage can lead to confusion.
Common error
While grammatically correct, "uncertain regarding" can sound overly formal in casual conversation. Opt for simpler alternatives like "unsure about" or "not sure about" in informal settings.
Source & Trust
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "uncertain regarding" functions as an adjectival phrase modifying a noun. It describes a state of doubt, lack of clarity, or a degree of unpredictability concerning a specific subject or issue. Ludwig's analysis confirms its grammatical correctness.
Frequent in
Science
75%
News & Media
12%
Wiki
8%
Less common in
Formal & Business
5%
Reference
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "uncertain regarding" is a grammatically correct and commonly used phrase to express doubt or lack of clarity about a specific subject. While Ludwig AI affirms its validity, it's important to note that its usage leans towards formal contexts. As such, consider simpler alternatives like "unsure about" in informal settings. The phrase is frequently found in scientific and news publications, indicating its suitability for these contexts. When using "uncertain regarding", ensure clarity by explicitly specifying what the uncertainty pertains to.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
unsure about
This alternative uses a more common and informal adjective, "unsure", instead of "uncertain", making it slightly less formal.
unsure concerning
This phrase combines the informality of "unsure" with the slightly more formal preposition "concerning".
doubtful concerning
This option replaces "uncertain" with "doubtful" and "regarding" with "concerning", offering a slightly more formal tone.
not confident about
This alternative focuses on a lack of confidence, highlighting the emotional aspect of uncertainty.
unclear on
This option shifts the focus to a lack of clarity or understanding, rather than a feeling of uncertainty.
dubious about
This alternative introduces a stronger sense of skepticism or disbelief compared to simple uncertainty.
undecided about
This focuses on a lack of decision or resolution, implying a state of uncertainty leading to inaction.
skeptical of
This emphasizes a questioning attitude or a lack of trust, rather than just uncertainty.
questionable with respect to
This is a more formal and complex way of expressing uncertainty, suitable for academic or technical contexts.
in doubt as to
This phrase presents a more literary or old-fashioned way of expressing uncertainty.
FAQs
How can I use "uncertain regarding" in a sentence?
The phrase "uncertain regarding" is used to express doubt or a lack of clarity about something. For example: "The company is uncertain regarding the future impact of the new regulations."
What are some alternatives to "uncertain regarding"?
You can use alternatives like "unsure about", "doubtful concerning", or "unclear on" depending on the context.
Is "uncertain regarding" formal or informal?
The phrase "uncertain regarding" leans towards the more formal side. In informal situations, consider using "unsure about" as a simpler alternative.
What's the difference between "uncertain regarding" and "uncertain about"?
The phrases are quite similar in meaning, but "uncertain regarding" often implies a slightly more detached or formal assessment, while "uncertain about" can suggest a more personal feeling of uncertainty.
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
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested