underact

/ˌʌndərˈækt/
verb
  1. To perform a role in a play or film with less emotion or energy than is expected or appropriate.
    • He deliberately chose to underact the villain to make him seem more cold and calculating.
    • In the school play, she was told not to underact and to show more excitement.
    • The critic said the lead actor tended to underact, making the dramatic scenes feel flat.
Antonyms
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