coolness

nouns

calm and unruffled self-assurance
"he performed with all the coolness of a veteran"
coolness, imperturbability, imperturbableness
is derived from
cool
the property of being moderately cold
"the chilliness of early morning"
chilliness, coolness, nip
is derived from
cool
fearless self-possession in the face of danger
coolness, nervelessness
is derived from
cool
a lack of affection or enthusiasm
"a distressing coldness of tone and manner"
chilliness, coldness, coolness, frigidity, frigidness, iciness
is derived from
cool