Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “complication”


noun [C]  /ˌkɑm·plɪˈkeɪ·ʃən/ us  
something that makes a situation more difficult: This complication had not been foreseen. medical A complication is a problem that develops from an existing illness, making treatment more difficult: He died from complications of diabetes.
(Definition of complication from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of complication?
Browse related topics

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

Add Cambridge dictionaries to your browser to your website

Definitions of “complication” in other dictionaries

Word of the Day


a type of dark brown beer with a bitter taste

Word of the Day


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