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
is fundamentally flawed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is fundamentally flawed" is correct and usable in written English.
You can use it when you are trying to emphasize that something is deeply flawed. For example, "The argument against increasing the minimum wage is fundamentally flawed."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(4)
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
60 human-written examples
Is Rodgers grand plan starting to bear fruit or it is fundamentally flawed?
News & Media
The reform is fundamentally flawed.
News & Media
But it is fundamentally flawed.
News & Media
The core is fundamentally flawed.
News & Media
We think the EBC is fundamentally flawed.
News & Media
The credit reporting industry is fundamentally flawed.
News & Media
Yet the circular reasoning behind this claim is fundamentally flawed.
News & Media
The idea of a learning community is fundamentally flawed.
News & Media
According to Percy, the strategy is fundamentally flawed.
News & Media
As the foundation for global trade, it is fundamentally flawed.
News & Media
Or, to borrow from Alan Greenspan, it is fundamentally "flawed".
News & Media
Expert writing Tips
Best practice
When using "is fundamentally flawed", ensure you can clearly articulate the specific reasons for this assessment. Providing concrete examples strengthens your argument.
Common error
Avoid using "is fundamentally flawed" as a blanket statement. Always provide specific reasons and evidence to support your claim, as simply stating it without justification weakens your argument.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is fundamentally flawed" functions as a predicate adjective, attributing a quality of being critically defective to a subject. This is confirmed by Ludwig, indicating its correct usage. It emphasizes the presence of deep and intrinsic issues within something.
Frequent in
News & Media
52%
Science
22%
Formal & Business
15%
Less common in
Academia
5%
Encyclopedias
3%
Wiki
3%
Ludwig's WRAP-UP
The phrase "is fundamentally flawed" is used to express that something has deep and intrinsic issues. According to Ludwig, the phrase is grammatically correct and frequently appears in various contexts, particularly in news, science, and formal business settings. This suggests the phrase has broad applicability and utility across diverse fields. Common alternatives include "is deeply flawed" or "is inherently flawed". When using the phrase, provide specific reasons and evidence to support your claim. Avoiding overuse without justification helps to improve your writing. In summary, while potent, the phrase requires a solid and justified basis to be wielded effectively.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is deeply flawed
Emphasizes the depth of the flaws.
is inherently flawed
Focuses on the flaws being an intrinsic part of the subject.
is critically deficient
Highlights essential shortcomings.
is fatally undermined
Implies that the flaws lead to failure.
is seriously compromised
Suggests that the flaws damage its integrity or effectiveness.
is irreparably damaged
Indicates that the flaws cannot be fixed.
is irretrievably broken
Conveys a sense of finality and inability to recover.
is unsound at its core
Pinpoints the problem to the central or most important part.
is built on a weak foundation
Focuses on the instability of the base or origin.
is untenable in practice
Highlights the impracticality caused by the flaws.
FAQs
How can I use "is fundamentally flawed" in a sentence?
Use "is fundamentally flawed" to express that something has critical issues that affect its core functionality or validity. For example, "The study's methodology "is fundamentally flawed" due to biased sampling."
What are some alternatives to saying "is fundamentally flawed"?
You can use alternatives like "is deeply flawed", "is inherently flawed", or "is critically deficient" to express similar ideas, each with slight differences in emphasis.
Is it too strong to say something "is fundamentally flawed"?
The strength of the statement depends on the context. If you can provide substantial evidence to support your claim, then it's appropriate. If you lack sufficient justification, it might be too strong. Consider using a more moderate phrase such as "is largely flawed".
What's the difference between "is fundamentally flawed" and "is slightly flawed"?
"Is fundamentally flawed" indicates deep, intrinsic problems, while "is slightly flawed" suggests minor imperfections that don't significantly affect the whole. The former implies a need for major changes or abandonment, while the latter suggests only minor adjustments are necessary.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested