: not theatrical: as
a. : not designed for or presented in a theater
tended to be more dramatic in his nontheatrical works — Irving Kolodin
b. : of or relating to a moving picture especially on film of substandard size that is designed primarily for showing in the home, classroom, or assembly hall
the wholly nontheatrical film tends to be of two- to three-reel length — Raymond Spottiswoode
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adj.; nontheatrically, adv.
Useful english dictionary. 2012.