Noun coolness has 4 senses
  1. chilliness, coolness - the property of being moderately cold; "the chilliness of early morning"
    --1 is a kind of coldness, cold, low temperature
  2. coolness, imperturbability, imperturbableness - calm and unruffled self-assurance; "he performed with all the coolness of a veteran"
    --2 is a kind of calmness
  3. coolness, nervelessness - fearless self-possession in the face of danger
    --3 is a kind of fearlessness
  4. coldness, coolness, frigidity - a lack of affection or enthusiasm
    --4 is a kind of unemotionality, emotionlessness
    --4 has particulars: stone; tepidness, lukewarmness
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