s. sakin, dingin, durgun. She is a calm person. (O sakin bir insandır.)

Freedom from motion, agitation, or disturbance; a cessation
or absence of that which causes motion or disturbance, as of winds or
waves; tranquility; stillness; quiet; serenity.

To make calm; to render still or quiet, as elements; as, to
calm the winds.

Not stormy; without motion, as of winds or waves; still;
quiet; serene; undisturbed.

Undisturbed by passion or emotion; not agitated or
excited; tranquil; quiet in act or speech.