peaceful

/ˈpēs-fəl/

adjective

  1. peaceable

  2. untroubled by conflict, agitation, or commotion : quiet, tranquil

  3. of or relating to a state or time of peace

They are a peaceful people.

calm tranquil serene placid peaceful mean quiet and free from disturbance. calm often implies a contrast with a foregoing or nearby state of agitation or violence. tranquil suggests a very deep quietude or composure.