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 very complex
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is very complex" is correct and usable in written English.
You can use it to describe something that has many intricate parts or is difficult to understand. Example: "The theory of relativity is very complex and requires a deep understanding of physics."
✓ Grammatically correct
News & Media
Science
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
"It is very complex.
News & Media
Mick is very complex.
News & Media
His journey is very complex.
News & Media
The environment is very complex.
News & Media
"New Jersey is very complex.
News & Media
"It is very complex," she says.
News & Media
A. This situation is very complex.
News & Media
"It is very complex," he said.
News & Media
The problem is, the central nervous system is very complex.
News & Media
"Globalization is very complex in China," Mr. Jia said.
News & Media
It is very complex and there are lots of challenges.
News & Media
Expert writing Tips
Best practice
When using "is very complex", consider if a more specific adjective could provide greater clarity, such as "intricate", "convoluted", or "multifaceted".
Common error
Avoid using "is very complex" as a generic descriptor. Instead, elaborate on what makes it complex to enhance understanding and engagement. Provide specific details rather than relying on a vague adjective.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is very complex" functions as a descriptive adjective phrase. It attributes the quality of being intricate or complicated to a subject. Ludwig AI confirms its wide usability in English, as demonstrated by numerous examples across diverse contexts.
Frequent in
News & Media
37%
Science
59%
Formal & Business
4%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "is very complex" is a common and grammatically sound way to describe something intricate or complicated. Ludwig AI highlights that its usage spans across various contexts, particularly in news, media, and scientific domains. While perfectly acceptable, consider replacing "very complex" with more specific adjectives to enhance clarity and engagement. Alternative phrases like "is quite complex" or "is highly complex" may be suitable depending on the desired degree of emphasis. Avoiding overuse and providing concrete details about what makes something complex will lead to more effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is quite complex
Replaces "very" with "quite", suggesting a slightly lesser degree of complexity.
is highly complex
Replaces "very" with "highly", intensifying the degree of complexity.
is particularly complex
Adds emphasis on the specific complexity of something.
is incredibly complex
Replaces "very" with "incredibly", indicating a stronger degree of complexity.
is exceptionally complex
Similar to 'incredibly complex', but with a more formal tone.
is really complex
Replaces "very" with "really", which is slightly more informal.
is extraordinarily complex
Emphasizes an unusual degree of complexity.
is quite intricate
Uses "intricate" as a synonym for "complex", focusing on the detailed nature.
is very sophisticated
Uses "sophisticated" to imply complexity that also involves refinement.
is very difficult
Shifts the focus from complexity to the difficulty in understanding or dealing with something.
FAQs
How can I use "is very complex" in a sentence?
You can use "is very complex" to describe subjects that have many interconnected parts or are difficult to understand. For example, "The human brain is very complex". Consider alternatives like "is highly complex" or "is quite intricate" depending on the desired nuance.
What are some alternatives to "is very complex"?
Depending on the context, you could use phrases such as "is highly complex", "is quite complex", "is exceptionally complex", or even "is very sophisticated" to convey different shades of meaning.
Is it better to say "is very complex" or "is complex"?
While both are grammatically correct, "is very complex" emphasizes the degree of complexity. "Is complex" is a more neutral statement. The choice depends on how much you want to highlight the intricacy of the subject.
What does it mean when something "is very complex"?
When something "is very complex", it means it has many interconnected parts or layers that make it difficult to understand, analyze, or deal with. It suggests a high degree of intricacy and often requires specialized knowledge or skills to navigate effectively.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested