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
the obstacle is
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "the obstacle is" is correct and usable in written English.
You can use it when identifying or discussing a specific challenge or barrier in a situation. Example: "In this project, the obstacle is the lack of funding, which hinders our progress."
✓ Grammatically correct
News & Media
Science
Alternative expressions(5)
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
59 human-written examples
The obstacle is greed.
News & Media
The obstacle is Gordon Brown.
News & Media
"Oliver Twist" stumbles, and the obstacle is Fagin.
News & Media
"The obstacle is us," Kelsey says.
News & Media
"But the obstacle is getting them in the building".
News & Media
The obstacle is not the will or the means.
News & Media
The obstacle is terrorism, the victims are largely Muslim.
News & Media
As Adam Phillips once said, "The obstacle is a way of not letting something else happen".
News & Media
But other scientists argue that the obstacle is not graphene's physical properties.
News & Media
The obstacle is not economic science but, as usual, America's raging political battles.
News & Media
But when the obstacle is, say, China, it is a different order of challenge.
News & Media
Expert writing Tips
Best practice
When using "the obstacle is", clearly and concisely identify what the barrier is to ensure clarity for your audience.
Common error
Avoid using "the obstacle is" without clearly specifying what the obstacle actually is. For example, instead of saying "The obstacle is obvious", state "The obstacle is the lack of funding."
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "the obstacle is" functions as a declarative statement identifying a specific barrier or challenge. It serves to highlight the primary impediment hindering progress or achievement, as demonstrated in the Ludwig examples.
Frequent in
News & Media
43%
Science
42%
Formal & Business
6%
Less common in
Wiki
3%
Reference
2%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, "the obstacle is" is a commonly used and grammatically correct phrase that serves to identify a specific challenge or barrier. As evidenced by Ludwig, it appears frequently in news, scientific, and formal business contexts, making it suitable for a wide range of writing purposes. Although it is clear and versatile, it should be used with specific details, according to Ludwig AI, to avoid vagueness and to maintain clarity for the audience. Related phrases, such as "the challenge is" and "the problem is", offer semantically similar alternatives that can be used depending on the specific nuances you aim to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
the problem is
This is a more direct way of stating the difficulty.
the challenge is
This alternative emphasizes the difficulty as a test of one's abilities.
the barrier is
This alternative focuses on something that prevents movement or progress.
the main issue is
This highlights the most important problem to address.
the limitation is
This alternative highlights a restrictive factor.
the impediment is
This phrase denotes something that hinders progress.
the constraint is
This focuses on a limitation or restriction.
the stumbling block is
This indicates a major problem that causes one to hesitate or fail.
the bottleneck is
This alternative specifies something that is slowing down progress.
the difficulty lies in
This alternative focuses on where the problem or challenge is situated.
FAQs
How can I use "the obstacle is" in a sentence?
You can use "the obstacle is" to introduce a problem or challenge that needs to be overcome. For example, "The obstacle is lack of resources, but we can find solutions."
What are some alternatives to "the obstacle is"?
Some alternatives to "the obstacle is" include "the challenge is", "the problem is", or "the difficulty lies in".
Is there a difference between "the obstacle is" and "the problem is"?
While similar, "the obstacle is" often implies something that can be overcome, whereas "the problem is" can refer to a broader, potentially less solvable issue.
Which is more formal, "the obstacle is" or "the challenge is"?
"The obstacle is" and "the challenge is" are generally interchangeable in formal writing, though "the challenge" might be perceived as slightly more positive in tone.
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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
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested