interloper
noun/ˈɪntələʊpə(r)/
/ˈɪntərləʊpər/
- a person who is present in a place or a situation where they do not belong or are not wanted synonym intruder
- She felt like an interloper in her own family.
Word Originlate 16th cent. (denoting an unauthorized trader trespassing on the rights of a trade monopoly): from inter- ‘amid’ + -loper as in archaic landloper ‘vagabond’ (from Middle Dutch landlooper).
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interloper