over-react

verb (used without object)

1. to react or respond more strongly than is necessary or appropriate.

verb

1. (intr) to react excessively to something

v.also overreact, 1961, from over- + react (v.). First attested in Lewis Mumford. Related: Over-reacting; overreacting; over-reaction. v.

1. To react with unnecessary or inappropriate force, emotional display, or violence.