to act (a dramatic role) in an exaggerated way
verbo·ver·act·ed, o·ver·act·ing, o·ver·acts
To act (a dramatic role) with unnecessary exaggeration.
- To exaggerate a role; overplay.
- To act over and above what is required; overdo in acting.
(third-person singular simple present overacts, present participle overacting, simple past and past participle overacted)
- (performing arts) To act in an exaggerated manner.
- He overacted his part.