homebody
noun [ C ] mainly US uk/ˈhəʊm.bɒd.i/ us/ˈhoʊm.bɑː.di/
喜欢待在家里的人，恋家的人，宅男，宅女
a person who likes spending time at home rather than going out with friends or travelling to different places
I'm a homebody, so I knew traveling would be tough. 我是个恋家的人，所以我知道旅行会很艰难。