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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
that is borderline
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that is borderline" is correct and usable in written English.
It can be used to describe something that is on the edge of acceptability or appropriateness, often in a negative context. Example: "The behavior he exhibited during the meeting was that is borderline unprofessional."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
15 human-written examples
"They are able to really help break a band that is borderline but not quite there".
News & Media
For politicians and financiers, marginal means land that is borderline for modern agriculture.
News & Media
Even with the surgery, and even maintaining a weight that is borderline obese (at least according to the government definition; Janet weighs 180 pounds, plus or minus 15, meaning her body-mass index hovers around the magic number of 30), she can never enjoy food with complete and carefree abandon.
News & Media
Those who hold them also share an aversion to onshore wind turbines, one of Britain's cheapest forms of renewable power, that is borderline obsessive.A more potent challenge comes from George Osborne, the chancellor of the exchequer, who worries, as is his function, about the costs of the green policies he once espoused.
News & Media
Three of the DSM-IV Axis II disorders, that is, borderline personality, schizotypal and avoidant personality, showed significantly increased risk for wave 2 SRO.
Science
Mycobacterium setuense was used as an outgroup because it is a species that is borderline to the slow-growing mycobacteria (8 ).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
45 human-written examples
"We've had kids that were borderline enrollees, guys that didn't do great.
News & Media
"It was not even something that was borderline significant," Dr. Lobo said.
News & Media
"If I looked at a place that was borderline, I took them along to help make the decision," he recalled.
News & Media
He was dressed like an unkempt graduate student, uncaring of tailoring considerations of any sort, wearing a hip-length black mackinaw-type coat that was borderline shabby.
News & Media
Over the next hour and a half, it slowly emerged that the ONS was not the only statistical agency that was borderline incompetent.
News & Media
Expert writing Tips
Best practice
Use "that is borderline" to express that something is close to exceeding a limit of acceptability or appropriateness, often implying a negative judgment or concern.
Common error
While "that is borderline" is acceptable, overuse in formal writing can weaken your argument. Consider stronger, more precise alternatives to convey your intended meaning more effectively.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that is borderline" functions as a predicate adjective, modifying a subject to indicate its proximity to a specified boundary or limit. As Ludwig AI states, the phrase is correct and usable in written English.
Frequent in
News & Media
50%
Science
30%
Formal & Business
20%
Less common in
Wiki
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "that is borderline" is a grammatically correct and usable expression to describe something nearing a limit of acceptability or appropriateness. Ludwig AI confirms its validity. While versatile across contexts like news and media, science, and formal settings, it's less common in highly formal or academic writing, where more precise language may be preferred. When writing, consider whether a stronger, more direct alternative would better convey your meaning. "That is borderline" is often employed to express concern or reservation, indicating that something is close to being out of bounds.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it's almost unacceptable
Emphasizes proximity to being unacceptable.
it's verging on inappropriate
Uses "verging on" to indicate approaching inappropriateness.
it's on the edge of acceptable
Uses "on the edge" to describe being near the limit of acceptability.
it's nearly unacceptable
Replaces "that is borderline" with a direct assessment of acceptability.
it's close to being out of line
Replaces "borderline" with "out of line" to emphasize the breach of standards.
it pushes the limits
Uses "pushes the limits" to suggest approaching or testing boundaries.
it approaches being unacceptable
Formal alternative using "approaches" to convey nearing unacceptability.
it's toeing the line
Implies getting close to prohibited behavior.
it skirts the boundaries of acceptability
Suggests narrowly avoiding being unacceptable.
it's just about tolerable
Conveys minimal acceptability.
FAQs
How can I use "that is borderline" in a sentence?
You can use "that is borderline" to describe something close to being unacceptable, inappropriate, or questionable. For example, "The behavior he displayed at the meeting "that is borderline" unprofessional".
What are some alternatives to "that is borderline"?
Alternatives include "it's nearly unacceptable", "it's verging on inappropriate", or "it's almost unacceptable", depending on the context and nuance you want to convey.
Is "that is borderline" too informal for academic writing?
While not strictly incorrect, "that is borderline" can sound less formal than desired in academic writing. Consider more precise and objective alternatives such as "approaches being unacceptable" or "skirts the boundaries of acceptability".
What does it mean when something is described as "that is borderline"?
It means something is close to exceeding a defined limit or standard, often implying that it is nearly unacceptable or inappropriate. The exact meaning depends on the context in which ""that is borderline"" is used.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested