coolness

noun

1.
calm and unruffled self-assurance
thild imperturbability imperturbableness
Derived from:
cool
2.
the property of being moderately cold
chilliness nip
Derived from:
cool
3.
fearless self-possession in the face of danger
nervelessness
Derived from:
cool
4.
a lack of affection or enthusiasm
chilliness coldness frigidity frigidness iciness
Derived from:
cool