Added 9 October 2026
coolness
/ˈkuːlnəs/ noun
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about coolness at Wordnik → Where our words come from →
-
Calm and unruffled self-assurance.
he performed with all the coolness of a veteran
-
The property of being moderately cold.
the chilliness of early morning
- Fearless self-possession in the face of danger.
Origin
From Middle English colnes, colnesse, from Old English cōlnes, cœ̄lnes, cēlnes (“coolness; cool air, breeze”), from Proto-West Germanic *kōlinassī, equivalent to cool + -ness. Cognate with Middle High German kuolnisse, küelnisse (“cooling, coolness”).
From Wiktionary, via Kaikki.org (CC BY-SA)