: the act or an instance of producing too much of something
By law, a French wine maker can only produce so much wine from a given acre of vines. This is meant to prevent uncontrolled—and unconscionable—overproduction. Frank J. Prial
That situation came to a head during the Great Depression, when an extended bout of overproduction led to falling prices and a severe farm crisis. Tom Philpott
The site will give the company better information about customer demand, helping it avoid shortages of popular vehicles and overproduction of duds. Eric Young
In sensitized individuals, normally harmless substances, such as pollens and molds, trigger the overproduction of histamine … Gary Rachelefsky