flare-up
noun /ˈfleər ʌp/
/ˈfler ʌp/
[usually singular]- a sudden expression of angry or violent feeling synonym outburst
- a flare-up of tension between the two sides
- (of an illness) a sudden painful attack, especially after a period without any problems or painTopics Illnessc2
- the fact of a fire suddenly starting to burn again more strongly than before
- a flare-up of the bushfires