complication
🇺🇸
/ˌkɑːmplɪˈkeɪʃn/
🇬🇧
/ˌkɒmplɪˈkeɪʃn/
Something that makes a situation harder or more complex
The bad weather was a complication that made our journey more difficult.
A new health problem that makes treating an existing one harder
Infertility is a complication that can occur with this type of radiotherapy.