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
substantively complex
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "substantively complex" is correct and usable in written English.
It can be used to describe something that has significant depth or intricacy in its content or structure. Example: "The report was substantively complex, requiring careful analysis to fully understand its implications."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(1)
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
1 human-written examples
Over an extended period of time, the Trial Chamber displayed a willingness to engage with the Prosecution and Serbia and Montenegro in a series of procedurally and substantively complex circumstances surrounding a multitude of documents.
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
However, an analysis with the more complex model did not substantively change the result (not shown). 1 number remaining after ambiguously aligned sites removed 2 base composition heterogeneity based on variable sites only 3 2nd position P = 0.94 (NS) ADH5 shares many of the desirable properties of FGB7, such as even base composition and relatively uniform rates among sites (Table 2).
Science
If a study provided data on multiple predator-prey pairs, or on the same predator-prey interaction in substantively different conditions (high versus low nutrient levels, complex versus simple environments, etc)., we treated these studies as independent data points in our analyses in order to address the range of possible conditions in which NCE might be important [e.g., 14,54,55].
Science
It is important in discussions of context to concentrate substantively on what matters (i.e. whether to map genre as an emergently complex pattern of field, tenor and mode configurations or not), and not to dwell terminologically on what does not.
Science
However, the relationship between hypoglycemia risk and treatment intensity differs substantively from the relationship between hypoglycemia risk and achieved HbA1c level, the latter being more complex.
Science
Although these networks share similar complex network topologies – they are scale-free, small-world, and modular – they are nonetheless different in substantively important ways.
Science
And substantively at times".
News & Media
"Substantively, the bill is abysmal.
News & Media
This makes little sense, substantively.
News & Media
Ideologically and substantively, it is centrist.
News & Media
It does – descriptively, substantively and symbolically.
News & Media
Expert writing Tips
Best practice
Use "substantively complex" when you want to emphasize that the complexity is not superficial but goes to the core of the subject matter.
Common error
Avoid using "substantively complex" when describing something that is merely complicated. Reserve it for situations where the complexity is fundamental and significant.
Source & Trust
86%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "substantively complex" functions as a descriptive adjective phrase, modifying a noun to indicate that it possesses a significant and deep level of complexity. Ludwig confirms its correct usage.
Frequent in
Science
45%
News & Media
35%
Encyclopedias
20%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "substantively complex" is a grammatically correct and usable phrase to describe something with significant depth or intricacy. While not frequently used, it's well-suited for formal, academic, and scientific contexts. Ludwig AI confirms its validity, noting its appropriateness for describing situations requiring careful analysis. When considering alternatives, options like "intrinsically complicated" or "fundamentally intricate" can provide similar meanings, depending on the specific nuance desired.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
intrinsically complicated
Focuses on the inherent nature of the complexity.
fundamentally intricate
Emphasizes the deep-rooted and detailed nature of the complexity.
deeply convoluted
Highlights the elaborate and intricate nature of the complexity.
materially intricate
Emphasizes the significant and detailed nature of the complexity.
genuinely multifaceted
Highlights the many aspects and dimensions contributing to the complexity.
significantly elaborate
Emphasizes the considerable detail and intricacy involved.
essentially sophisticated
Focuses on the advanced and refined nature of the complexity.
profoundly involved
Highlights the deep level of engagement and complexity.
inherently multifaceted
Focuses on the innate multi-dimensional characteristic.
critically elaborate
Emphasizes the crucial and detailed construction.
FAQs
How can I use "substantively complex" in a sentence?
You can use "substantively complex" to describe situations, ideas, or systems that are deeply and fundamentally intricate. For example, "The legal case was "substantively complex", requiring extensive research and analysis".
What are some alternatives to "substantively complex"?
Alternatives include "intrinsically complicated", "fundamentally intricate", or "deeply convoluted" depending on the nuance you wish to convey.
Is it appropriate to use "substantively complex" in informal writing?
While grammatically correct, "substantively complex" is more suited to formal, academic, or professional contexts. In informal writing, simpler alternatives might be more appropriate.
What's the difference between "substantively complex" and "simply complex"?
"Substantively complex" implies a deeper, more fundamental level of intricacy, whereas "simply complex" suggests complexity without necessarily implying depth or significance. The former is about the core nature of something, while the latter is a general observation about its complicated nature.
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
86%
Authority and reliability
4.3/5
Expert rating
Real-world application tested