interloper

noun (n)

1. someone who intrudes on the privacy or property of another without permission (noun.person)

   Sinonim: intruder, trespasser

   Sumber: wordnet30

2. One who interlopes; one who unlawfully intrudes upon a property, a station, or an office; one who interferes wrongfully or officiously. (noun)

   Sumber: webster1913