hűvös

Etymology
From an otherwise unattested stem +.

Adjective

 * 1) cool
 * 2)  cold, icy, aloof, distant unfriendly, emotionally distant or unfeeling
 * 1)  cold, icy, aloof, distant unfriendly, emotionally distant or unfeeling
 * 1)  cold, icy, aloof, distant unfriendly, emotionally distant or unfeeling

Noun

 * 1) coolness, cool weather/temperature or a cool place a moderate or refreshing state of cold; moderate temperature of the air between hot and cold
 * 2)  prison, jail
 * 1)  prison, jail

Declension
In the second sense, almost only the and  forms are used.