nonviolent -
abstaining (on principle) from the use of violence
violent (of colors or sounds) intensely vivid or loud; "a violent clash of colors"; "her dress was a violent red"; "a violent noise"; "wild colors"; "wild shouts"
peaceful,
peaceable not disturbed by strife or turmoil or war; "a peaceful nation"; "peaceful times"; "a far from peaceful Christmas"; "peaceful sleep"