Calmness

n.calm, resilientwarm

What it means

A settled quality that keeps thought and behavior from being ruled by strong emotion.

Reach for it when naming the steadiness someone brings to pressure, conflict, or uncertainty

Her calmness gave the stranded hikers confidence in the next step.

everyday
levelheadedness
sound judgment is the reason the calm deserves praise
not when It narrows the idea to thinking and misses a soothing emotional presence.
warm
peace
relief from conflict or inner turmoil is meant
not when Peace includes relationships, places, and political conditions beyond personal calmness.
professional
composure
visible self-control during strain is central
not when Composure can be maintained outwardly even when inner calmness is absent.
professional
poise
graceful assurance is visible to others
not when Poise adds polish and confidence that simple calmness need not have.
formal
tranquility
peaceful surroundings or an undisturbed state matter
not when A leader may show calmness amid noise, where tranquility does not exist.
literary
serenity
the state feels peaceful and largely undisturbed
not when Serenity is too complete for practical steadiness in a difficult moment.

sense of calmness
A sense of calmness returned once the children were accounted for.
remarkable calmness
The medic showed remarkable calmness throughout the rescue.
calmness under pressure
Calmness under pressure helped Priya notice the faulty reading.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.