IPA: /ˌoʊvərˈrɛkt/
KK: /oʊvərˈrɛkt/
To respond too strongly or in an exaggerated way to something that happens.
She tends to overreact to small problems, making them seem much bigger than they are.
Past: overreacted
Past Participle: overreacted
Overreact → It is formed from "over-" (meaning excessively) and "react" (from Latin "reactare", meaning to act in response). The word "overreact" means to respond excessively or more than what is appropriate to a situation.
Think of responding 'excessively' ('over-') to something you 'act' ('react') to — that's why overreact means to respond too much.
No commonly confused words.