Definition of interloper in English:

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Pronunciation: /ˈin(t)ərˌlōpər/


A person who becomes involved in a place or situation where they are not wanted or are considered not to belong.
Example sentences
  • That I am a stranger, an interloper, who does not belong in this amazing, fantastical world.
  • But it also stoked public fear of an invisible horde of foreign interlopers.
  • This time last year I seemed at best a guest and at worst an interloper in a foreign space.
intruder, encroacher, trespasser, invader, infiltrator;
uninvited guest;
outsider, stranger, alien
informal gatecrasher, buttinsky



Pronunciation: /ˈin(t)ərˌlōp/
Example sentences
  • ‘It's someone who interlopes,’ Bebbens snapped.


Late 16th century (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).

  • An interloper was originally an unauthorized trader trespassing on the rights of a trade monopoly. The word was coined in the late 16th century, and is truly a hybrid. The first element derives from Latin inter ‘between, among’, while the second is extracted from landloper, an old word for a vagabond or tramp taken from Dutch.

For editors and proofreaders

Syllabification: in·ter·lop·er

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