complication

noun

1. the act or process of complicating
2. a situation or condition that is complex or confused"her coming was a serious complication"
3. any disease or disorder that occurs during the course of (or because of) another disease"bed sores are a common complication in cases of paralysis"
4. a development that complicates a situation"the court's decision had many unforeseen ramifications"
5. puzzling complexity