Definition of coolness noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈkuːlnəs//
; NAmE NAmE//ˈkuːlnəs//
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the quality of being cool the delicious coolness of the water I admire her coolness under pressure. I noticed a certain coolness (= lack of friendly feeling) between them.
See the Oxford Advanced American Dictionary entry: coolness