D defs.my
Entry 2 senses Webster, 1913

Coolness

· Cool·ness · IPA /ˈkuːlnəs/
01 n. The state of being cool; a moderate degree of cold; a moderate degree, or a want, of passion; want of ardor, zeal, or affection; calmness.
  1. 1.
    The state of being cool; a moderate degree of cold; a moderate degree, or a want, of passion; want of ardor, zeal, or affection; calmness.
  2. 2.
    Calm impudence; self-possession.[Colloq.]