Definify.com
Webster 1913 Edition
Underact
Unˊder-act′
,Verb.
T.
To perform inefficiently, as a play; to act feebly.
Definition 2024
underact
underact
English
Verb
underact (third-person singular simple present underacts, present participle underacting, simple past and past participle underacted)
- To act in an understated manner or with little expressiveness