quiet or peaceful

やか(おだやか) Calm or mild – used about personality AND peaceful places, calm weather, mild ocean.
(へいおん) Used about someone’s personality OR their life. Peaceful but also uneventful. the quiet life.
(しずかな) Quiet.   $$$
(あんせい) A doctor’s word:get some rest. Peace and quiet is important to recovering from a heart attack. Don’t go back to work.   PPP