Overact

v. t.	1.	To act or perform to excess; to exaggerate in acting; as, he overacted his part.
	2.	To act upon, or influence, unduly. The hope of inheritance overacts them. - Milton.
v. i.	1.	To act more than is necessary; to go to excess in action.

Verb

1.

overact - exaggerate one's acting Synonyms: ham, ham it up, overplay Antonyms: underact, underplay - act (a role) with great restraint

act a part, affect, assume, carry too far, counterfeit, declaim, do a bit, dramatize, exaggerate, exhaust, fake, feign, go overboard, go to extremes, go too far, grimace, ham, ham it up, histrionize, know no bounds, make out like, mug, out-herod Herod, overcarry, overdevelop, overdo, overdramatize, overdrive, overelaborate, overemphasize, overexercise, overexert, overexpend, overindulge, overlabor, overplay, overreact, overspend, overstrain, overstress, overstudy, overtask, overtax, overtrain, overuse, overwork, pass all bounds, play, play a part, play a scene, playact, pretend, protest too much, put on, put on airs, rant, roar, sham, simulate, spout, throw away, tug the heartstrings, underact, wear