Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “complexity”

complexity

noun uk   /kəmˈplek.sɪ.ti/ us    /-sə.t̬i/
C2 [U] the state of having many parts and being difficult to understand or find an answer to: a problem of great complexityComplexityDifficult to understand complexities [plural] the features of something that make it difficult to understand or find an answer to: There are a lot of complexities surrounding this issue.ComplexityDifficult to understand
(Definition of complexity from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of complexity?
Browse related topics

You are looking at an entry to do with Complexity, but you might be interested in these topics from the Easy and difficult topic area:

Add Cambridge dictionaries to your browser to your website

Word of the Day

sling

to throw or drop something carelessly

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More