not showing or feeling nervousness, anger, or other strong emotions
(of a place) peaceful after violent activity
(of the weather) pleasantly free from wind
(of the sea) not disturbed by large waves
the absence of strong emotions; calm feelings
the absence of violent activity in a place
the absence of wind
still air represented by force 0 on the Beaufort scale (less than 1 knot or 1 km/h).
an area of the sea without wind
make (someone) tranquil and quiet; soothe
(of a person) become tranquil and quiet