offscreen
adverb
- quality of fictional events which are not seen, but merely heard by the audience or described or implied by the characters
Wiktionary
adj
Etymology: From off + screen.
- Existing or happening outside the frame of the cinema or television screen
“In addition to racking up what looks like a substantial offscreen body count, the movie at one point offers an eight-second introduction for a sleazy used-car salesman character for the sole purpose of justifying Tripp and Creech laying waste to his inventory.”
adv
Etymology: From off + screen.
- Outside the frame of the cinema or television screen
verb
Etymology: From off + screen.
- To kill a character offscreen.
“Yeah, I also hate her. I hope she gets offscreened in the third act low-key.”