- to act in an exaggerated manner.
Origin of overact
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for overact
I saw Mrs. Drew play Mrs. Malaprop, and it was a lesson to people who overact.
- to act or behave in an exaggerated manner, as in a theatrical productionAlso: overplay
Word Origin and History for overact
Online Etymology Dictionary, © 2010 Douglas Harper