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definitions

underact

[uhn-der-akt]
verb (used with or without object)
  1. to underplay.

Origin of underact

First recorded in 1615–25; under- + act
Related formsun·der·ac·tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for underact

underact

verb
  1. theatre to play (a role) without adequate emphasisCompare overact
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012