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
although highly unlikely
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "although highly unlikely" is correct and usable in written English.
It can be used to introduce a statement that acknowledges the low probability of a situation occurring while still considering it as a possibility. Example: "Although highly unlikely, there is a chance that the event could still take place."
✓ Grammatically correct
News & Media
Science
Alternative expressions(3)
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
7 human-written examples
It is possible England will want to go to Edgbaston with an extra batsman, although highly unlikely given the state of Andrew Flintoff's knee.
News & Media
Although highly unlikely to be experienced in the case of Hurricane Irene, it is theoretically possible that an even stronger storm might hit the city at some point in the future.
News & Media
If everyone else can watch video except the player and coaches, it is logically possible - although highly unlikely - that the head coach could be among the least informed people in the whole stadium.
News & Media
Although highly unlikely [48], we also cannot discard the hypothesis that the fetus of an HIV-1-positive mother may become transiently infected with HIV-1 and effectively clears the virus prior to birth.
Science
Although highly unlikely, we cannot rule out that host cells could have contributed in some aspects to the results since the F512 human promoter is active in rodent fibroblasts in vitro (data not shown).
Science
It is also possible, although highly unlikely, that individuals may have participated multiple times using different email addresses.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
He must one day do it again, although it is highly unlikely he will walk away now.
News & Media
The charge carries the death penalty, although it is highly unlikely that he will be sentenced to death if convicted.
News & Media
That is the target date for a completed deal, although it is highly unlikely that it will be met.
News & Media
Although it is highly unlikely parliament will vote against triggering article 50, parliament may well seek to impose certain conditions on the government.
News & Media
This review is based on a near-final pre-production sample of the Xperia Z4 Tablet – some aspects could change, although this is highly unlikely.
News & Media
Expert writing Tips
Best practice
When using "although highly unlikely", ensure the subsequent clause provides a reason or justification for considering the unlikely event, to maintain logical flow and credibility.
Common error
Avoid using "although highly unlikely" when the event is genuinely impossible or has no reasonable basis. This weakens the impact of the statement and can confuse the reader. If something is truly impossible, use stronger terms like "impossible" or "certainly not".
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "although highly unlikely" functions as an adverbial phrase, modifying a clause by introducing a concessive element. It acknowledges that something is improbable but does not rule it out completely. Ludwig AI confirms its grammatical correctness and usability.
Frequent in
News & Media
55%
Science
35%
Formal & Business
5%
Less common in
Academia
2%
Encyclopedias
1%
Wiki
1%
Ludwig's WRAP-UP
In summary, "although highly unlikely" is a grammatically correct and versatile phrase used to express concession and contrast. It is commonly found in news and scientific contexts, indicating a relatively formal register. While synonymous alternatives exist, the phrase's emphasis on the low probability makes it suitable for specific situations. According to Ludwig AI, the expression is appropriate and usable in written English. Understanding the nuances of "although highly unlikely" can enhance clarity and precision in writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
though quite improbable
Replaces "highly unlikely" with "quite improbable", slightly altering the emphasis on the degree of unlikelihood.
while exceedingly improbable
Uses "exceedingly improbable" to intensify the sense of unlikelihood compared to the original phrase.
even if improbable
Simplifies the expression while retaining the core meaning of low probability and concession.
despite its improbability
Nominalizes the unlikelihood, shifting the structure while keeping the meaning similar.
even though it's a long shot
Replaces the formal tone with an idiomatic expression indicating low probability.
though the odds are stacked against it
Uses a more figurative expression to convey the unlikelihood of something happening.
while the chances are slim
Employs a more direct and common way of expressing low probability.
although against all odds
Introduces a slightly different angle, emphasizing the surprising nature of success despite unlikelihood.
though scarcely possible
Highlights the minimal possibility, focusing on the difficulty of occurrence.
even if remotely feasible
Emphasizes the distant possibility, focusing on the theoretical rather than practical chance.
FAQs
How can I use "although highly unlikely" in a sentence?
"Although highly unlikely", the team could still win if their opponents make significant errors.
What are some alternatives to "although highly unlikely"?
You can use alternatives like "though quite improbable", "while exceedingly improbable", or "even if improbable depending on the context.
Is it redundant to say "although highly unlikely"?
While "unlikely" already suggests a low probability, adding "highly" emphasizes the remoteness of the possibility, making the phrase stronger. It is a matter of stylistic choice, not redundancy.
What's the difference between "although unlikely" and "although highly unlikely"?
The addition of "highly" intensifies the degree of unlikelihood. "Although unlikely" simply indicates a low probability, while "although highly unlikely" stresses that the probability is very low.
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested