nonrioter

noun

non·​ri·​ot·​er ˌnän-ˈrī-ə-tər 

plural nonrioters

: one who does not create or participate in a riot

… it is worth noticing here, against the background of all that has been heard about the effects of broken homes, that the rioters were no more likely than the nonrioters to have come from homes which lacked the presence of an adult male.

—Hadley Arkes

nonrioting

ˌnän-ˈrī-ə-tiŋ 

adjective

Care was taken not to hit collateral targets and nonrioting and non-shooting bystanders …

—Benny Morris

Word History

First Known Use

1906, in the meaning defined above