1. A person that is soooo amazingly awesome that no matter how much effort is put into hating them that person can not be hated
2. Being so loveable that even if one were to try to hate the unhateable person, it would be impossible because something about them makes everyone like them
1. Ashley Starnes is unhateable to Nathan Poore; he could never hate her.
2. I love Ashley! I don't know how anyone could hate her; she's unhateable!