na-adjective, noun which may take the genitive case particle 'no', noun
Describes a cold or chilly condition, often used for weather, air, or objects. Can be used as a noun, adjectival noun (na-adjective), or with の.
今日は冷寒な一日だった。
Today was a cold day.
冷寒の地で育った野菜は甘みが強い。
Vegetables grown in cold regions are sweeter.