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
underlying difficulty
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "underlying difficulty" is correct and usable in written English.
It can be used to refer to a fundamental or hidden challenge that affects a situation or problem. Example: "The underlying difficulty in the project was the lack of resources, which hindered our progress."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
fundamental flaw
inherent cause
potential issue
underlying issues
key challenge
inherent problem
fundamental issue
inherent issue
own issue
intrinsic issue
inherent difficulty
inescapable problem
intrinsic problem
inevitable issue
unavoidable complication
structural weakness
fundamental challenge
primary obstacle
built-in limitation
genuine issue
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
12 human-written examples
"More authentically Blair", says his biographer, "is the style of stringing people along and keeping options open, while waiting to see what happens and whether anything falls into his lap .The underlying difficulty both books identify is, simply, the lack of a philosophical compass.
News & Media
How each side manages those tensions will determine a great deal, but the underlying difficulty is that Europeans have limited sway over Turkey's leadership because they are in a state of dependence on Turkish president Recep Tayyip Erdoğan.
News & Media
The underlying difficulty is holding together the coalition of local and foreign judges, lawyers and administrators who staff the court.Foreign staff want to expand the docket from five to ten suspects and to order testimony from six high-ranking members of the current government.
News & Media
We offer a less rigorous scale analysis argument to explain why the underlying difficulty in accelerating short-range interactions is not peculiar to the Gaussian RBF basis or to the Fast Gauss Transform, but rather is likely to be a generic difficulty in accelerating the short-range interactions of almost any RBF basis with almost any Fast Summation.
It has been suggested that at least some aspects of this pathology may be related to an underlying difficulty in processing context information [1] [4].
Science
Such networks promote increased fitness and resilience and may explain the underlying difficulty in cultivating most environmental microorganisms [ 25– 27].
Science
Human-verified similar examples from authoritative sources
Similar Expressions
48 human-written examples
He added: "The marriage had become extremely strained and there were underlying difficulties concerning money, the conduct of Teresa Gilbertson, and her unrealistic expectation of what he could provide.
News & Media
Within minutes of the filing of the suits, several banks responded with a preview of the legal arguments they will make in the coming months, namely that Fannie and Freddie were sophisticated investors who should have known the securities were not without risk, and that the losses were caused not by fraud or misrepresentation but by underlying difficulties in the housing market.
News & Media
The underlying difficulties faced by students seemed to have high, even uncompromising standards and high quality objectives.
This article is intended to review the strategies, current progresses and underlying difficulties in using machine learning methods for predicting these protein binders and as potential virtual screening tools.
The underlying difficulties associated with these problems arise from the lack of collision detection mechanisms, the potential inability of RFID readers to relay packets generated by other readers, and severe resource constraints on RFID tags.
Expert writing Tips
Best practice
When using "underlying difficulty", ensure you clearly articulate what that difficulty is and its impact on the situation. This adds clarity and prevents ambiguity.
Common error
Avoid focusing solely on surface-level symptoms without addressing the "underlying difficulty". Treating symptoms without addressing the root cause can lead to recurring problems.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "underlying difficulty" functions as a noun phrase, where "underlying" modifies "difficulty." It identifies a fundamental or less obvious problem influencing a situation. As Ludwig AI confirms, the phrase is usable and correct.
Frequent in
Science
40%
News & Media
35%
Formal & Business
15%
Less common in
Encyclopedias
5%
Wiki
5%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "underlying difficulty" is a grammatically sound and contextually versatile expression used to pinpoint fundamental, often non-obvious problems. Ludwig AI confirms its correctness and usability. Predominantly found in science, news, and formal business contexts, it serves to highlight core issues influencing situations. Alternatives such as "fundamental challenge" and "root cause problem" offer nuanced variations. To use it effectively, clearly articulate the difficulty and its impacts. Avoid focusing solely on surface symptoms without addressing the underlying root, which could perpetuate the issue. Keep in mind, according to Ludwig examples, authoritative sources like The New York Times, The Guardian and The Economist, frequently employ the phrase.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
fundamental challenge
Emphasizes the foundational nature of the problem.
root cause problem
Highlights the causal origin of the difficulty.
basic impediment
Focuses on the hindering aspect of the core issue.
primary obstacle
Stresses the main barrier or hindrance.
core complication
Indicates a central and complex issue.
key challenge
Highlights the significance of the challenge.
central issue
Highlights the main topic of discussion or concern.
major stumbling block
Emphasizes the significant obstacle hindering progress.
hidden obstacle
Focuses on the not obvious nature of the problem.
latent problem
Implies a problem that is present but not yet visible or active.
FAQs
How can I use "underlying difficulty" in a sentence?
You can use "underlying difficulty" to describe a fundamental problem that is not immediately obvious. For example, "The "underlying difficulty" in the project was a lack of communication between teams."
What are some alternatives to "underlying difficulty"?
Alternatives include "fundamental challenge", "root cause problem", or "core complication" depending on the specific context.
What is the difference between "underlying difficulty" and "obvious problem"?
"Underlying difficulty" refers to a problem that is not immediately apparent, requiring investigation to uncover, while "obvious problem" is easily noticeable and requires no special effort to identify.
Is it better to address the symptoms or the "underlying difficulty"?
While addressing symptoms can provide temporary relief, it is generally more effective to address the "underlying difficulty" to achieve a long-term solution.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested