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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
complex challenge
Grammar usage guide and real-world examplesUSAGE SUMMARY
"complex challenge" is a correct and usable phrase in written English.
You can use it to refer to a particularly difficult problem that requires skill and effort to overcome. For example, "The examination posed a complex challenge for the students, testing their knowledge of the subject matter."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(18)
difficult problem
complicated issue
formidable undertaking
significant obstacle
major impediment
tough situation
vexing question
difficult challenge
complex problem
complex predicament
complex problems
endless hard problem
endless hard work
twofold setback
tough conflict
difficult struggle
fierce battle
bitter rivalry
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
57 human-written examples
The Everglades presented a more complex challenge.
News & Media
But this is a real complex challenge.
News & Media
We now face a complex challenge.
News & Media
Antimicrobial resistance is a complex challenge we all face.
News & Media
But giving meaning to life is a complex challenge of a quite different order".
News & Media
Thinking such a complex challenge through, and executing it, is Murphy's strength.
News & Media
This complex challenge needs a complex solution, one which involves and empowers people, not taxes them".
News & Media
The difficult and complex challenge for jurors is deciding what intent is.
News & Media
Addressing the global obesity epidemic is a huge and complex challenge that we all must face.
News & Media
There is no single solution to this complex challenge, but progress is within our reach.
News & Media
The Straw/Rifkind saga highlights the complex challenge of seeking clear answers.
News & Media
Expert writing Tips
Best practice
When using "complex challenge", ensure the context clearly identifies the specific area or domain where the challenge exists. This provides clarity and avoids ambiguity.
Common error
Avoid using "complex challenge" as a generic descriptor for every difficult situation. Opt for more specific language that captures the nuance of the particular problem to maintain the reader's interest and credibility.
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "complex challenge" functions primarily as a noun phrase, where "complex" modifies the noun "challenge". It describes a particular type of problem that is not simple or straightforward. Ludwig AI confirms that this is a correct and usable phrase.
Frequent in
News & Media
30%
Science
35%
Formal & Business
15%
Less common in
Reference
10%
Encyclopedias
5%
Wiki
5%
Ludwig's WRAP-UP
The phrase "complex challenge" is a common and grammatically sound way to describe a multifaceted problem requiring significant effort. As Ludwig AI indicates, it is appropriate for use in written English across a variety of contexts. It appears most frequently in scientific, news, and formal business settings. While alternatives like "difficult problem" or "complicated issue" exist, "complex challenge" specifically highlights both the intricacy and the demanding nature of the situation. When using this phrase, ensure that the context clearly defines the challenge to avoid ambiguity and overuse, maintaining impactful and credible communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
difficult problem
Focuses on the problematic aspect, less on the need for effort.
complicated issue
Highlights the intricacy of the matter, differing from a challenge that needs overcoming.
intricate task
Emphasizes the detailed and elaborate nature of the task.
formidable undertaking
Stresses the scale and difficulty of the endeavor.
daunting prospect
Highlights the discouraging or intimidating nature of what lies ahead.
serious hurdle
Emphasizes an obstacle that needs to be overcome.
significant obstacle
Focuses on the obstructive nature and importance.
major impediment
Points to something that hinders progress.
tough situation
A more general term for a difficult set of circumstances.
vexing question
Highlights that the challenge presents a question for which there is no easy or agreeable answer.
FAQs
How can I use "complex challenge" in a sentence?
You can use "complex challenge" to describe a multifaceted problem that requires significant effort and expertise to solve. For example, "Addressing climate change is a "complex challenge" that requires global cooperation".
What are some alternatives to "complex challenge"?
Alternatives include "difficult problem", "complicated issue", or "formidable undertaking". The best choice depends on the specific context and the aspect you want to emphasize. See also "difficult problem", "complicated issue", and "formidable undertaking".
Is it redundant to say "very complex challenge"?
While not grammatically incorrect, adding "very" to "complex challenge" can be redundant. The word "complex" already implies a high degree of intricacy. Consider using a stronger, more descriptive adjective if you want to emphasize the difficulty further. See also "difficult problem".
What makes a challenge "complex"?
A challenge is considered "complex" when it involves multiple interconnected factors, lacks a straightforward solution, and requires a deep understanding of various elements to address effectively. For example, poverty is a "complex challenge" that requires multifaceted solutions.
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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
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested