Serene, tranquil, peaceful.
The definition of pacified is: to bring or restore to a state of peace or tranquillity; quiet; calm
Progesterone is the hormone that helps keep the myometrium calm and quiet during gestation. It inhibits uterine contractions and promotes a state of relaxation to support the pregnancy.
Peaceful, quiet are synonyms of calm.
The dictionary definition for quiet is no noise (silent, hushed)
To bring to a state of peace, quiet, ease, calm, or contentment; pacify; soothe: to appease an angry king.
"Stillness" rhymes with darkness and means calm, quiet, or still.
quiet
quiet, serene, calm, still, peaceable, undisturbed
"Tula" in Zulu means "rest" or "be still." It is often used to encourage someone to be calm or quiet.
to calm down; to be quiet
calm, quiet, soothe
Stillness, calm, tranquility; peace of mind.