the·at·ri·cal (th?-?t?r?-k?l) also the·at·ric (-r?k)adj.1. Of, relating to, or suitable for dramatic performance or the theater.2. Marked by exaggerated self-display and unnatural behavior; affectedly dramatic.3. Of or relating to a film that is being shown in movie theaters: The blockbuster’s theatrical revenue was much higher than anticipated.n.1. A stage performance, especially by amateurs.2. theatricals Affectedly dramatic gestures or behavior; histrionics.the·at?ri·cal?i·ty (-k?l??-t?), the·at?ri·cal·ness (-k?l-n?s) n.the·at?ri·cal·ly adv.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.theatrical (???ætr?k?l) or theatricadj1. (Theatre) of or relating to the theatre or dramatic performances2. exaggerated and affected in manner or behaviour; histrionic the?atri?cality, the?atricalness n the?atrically advCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014the?at?ri?cal (?i?æ tr? k?l) adj. Also, the?at?ric. 1. of or pertaining to the theater or dramatic presentations. 2. suggestive of the theater or of acting; artificial, spectacular, or extravagantly histrionic. n. 3. theatricals, dramatic performances, esp. as given by amateurs. 4. a professional actor: a renowned family of theatricals. [1550?60;