possessive
adjective uk/pəˈzes.ɪv/ us/pəˈzes.ɪv/
(PERSON)
不愿与人分享的
If you are possessive about something that you own, you do not like lending it to other people or sharing it with other people.
He's pretty possessive about his iPod - I wouldn't dare ask to borrow it. 他不大愿意把iPod借给别人——我都不敢开口。
C2 独占欲强的，占有欲强的
Someone who is possessive in his or her feelings and behaviour towards or about another person wants to have all of that person's love and attention and will not share it with anyone else.
a possessive mother 独占欲很强的母亲
Her boyfriend was getting too possessive so she finished with him. 她的男友占有欲越来越强，所以她和他分手了。
(GRAMMAR)
B1 language （语法）所有格的，物主的
In grammar, a possessive word, form, etc. shows who or what something belongs to.
"Mine" and "yours"are possessive pronouns. mine 和 yours 是物主代词。