Collocation Dictionary
Common collocations with complex in American Collocation
complex
adjective
What are red words?
Around 90% of spoken and written English relies on just 7,500 common words.
These words are highlighted in red and are ranked using a star system.
- One-star words are commonly used
- Two-star words are even more common
- Three-star words are the most frequently used
What are red words?
Around 90% of spoken and written English relies on just 7,500 common words.These words are highlighted in red and are ranked using a star system.
- One-star words are commonly used
- Two-star words are even more common
- Three-star words are the most frequently used
US
/kəmˈpleks/
very
extraordinarily
extremely
highly
hugely
immensely
incredibly
particularly
very
The human brain is an immensely complex organ.
rather
fairly
quite
rather
relatively
somewhat
Some methods are fairly complex and others are extremely simple.
more than necessary
overly
too
unnecessarily
Some people complained that the process was overly complex.
system
arrangement
mechanism
network
process
structure
system
The climate system is very complex, and understanding it is difficult.
situation
case
environment
issue
matter
problem
situation
We can provide advice and guide you through more complex issues.
task
challenge
operation
project
task
Most tasks are fairly complex, and they all require a high level of expertise.
subject
area
phenomenon
subject
This is a complex area, and we cannot guarantee total accuracy.
challenging
confusing
contradictory
costly
difficult
expensive
subtle
time-consuming
varied
This project has been a complex and challenging one for the organization.