adj / n · academic

complex

UK/ˈkɒmpleks/US/ˈkɑːmpleks/COM·plex

Band 6-7task2speaking

consisting of many different and connected parts; not simple

Examples

Climate systems are highly complex and require interdisciplinary study.

The university built a new sports complex next to the library.

Policy problems are often complex because many stakeholders are involved.

Band 8 sentence

Addressing climate change demands integrated strategies because the underlying systems are complex and interdependent.

Collocations

  • complex issue
  • highly complex
  • complex relationship

Word family

complex adj / ncomplexity ncomplexly adv

Common mistakes

a complex of problemsa complex problem / a set of problems

comple xcomplex

Say it for a higher band

5difficult6complicated7+complex

Synonyms

complicated

intricate

Easily confused

complicated

The instructions are complicated, but with practice you can follow them.

intricate

The watch mechanism is incredibly intricate and requires skilled repair.

Related words

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