Christmassy
adjective informal uk/ˈkrɪs.mə.si/ us/ˈkrɪs.mə.si/
圣诞节所特有的；有圣诞气氛的
typical of Christmas, or happy because it is Christmas
It looks very Christmassy in here with the tree and all the decorations. 这棵树和所有这些装饰让这里看起来很有圣诞气氛。
I'd feel more Christmassy if it snowed. 要是下场雪我觉得会更有圣诞节的气氛。