interloper

1. N-COUNT If you describe someone as an interloper, you mean that they have come into a situation or a place where they are not wanted or do not belong. 闖入者[表不滿]

She had no wish to share her father with any outsider and regarded us as interlopers. 她不想與任何外人分享她的父親并把我們視為闖入者。