peaceful

Not at war; not disturbed by strife or turmoil.

peaceful protest

Whether modern, industrial man is less or more warlike than his hunter-gatherer ancestors is impossible to determine.[…]One thing that is true, though, is that murder rates have fallen over the centuries, as policing has spread and the routine carrying of weapons has diminished. Modern society may not have done anything about war. But peace is a lot more peaceful.

Inclined to peace.

Motionless and calm.

Attractive cottages look out on a scene so peaceful that lapping wavelets, stirred by the breeze, are often the loudest sound to be heard.

a Muslim; especially a violent member of a radical Islamist group.

They only have to use a bit of code to name those people; nowadays they call them “peacefuls”. A smirking euphemism is all it takes to sail through Twitter’s filter, and keep the hate-speech flowing.