Get the details behind our redesign


[in-ter-loh-per] /ˈɪn tərˌloʊ pər/
a person who interferes or meddles in the affairs of others:
He was an athiest who felt like an interloper in this religious gathering.
a person who intrudes into a region, field, or trade without a proper license.
1585-95;inter- + -loper (see landloper) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples for interloper
  • That's a security guard moving in at right to intercept the interloper.
  • The nitrogen interloper provides an extra electron which can be used to generate photons or to store quantum information.
  • If an interloper manages to evade the cameras and somehow get inside, he will face other high-tech security measures.
  • Loosestrife has gone from being a nuisance and an interloper to a botanical bully and a green cancer.
  • The interloper does so by forcing one of the molecules in the cluster to share a hydrogen bond with it.
  • Horner doesn't want to leave any fossils lying around unguarded in case the interloper is a robber and smuggler.
  • The blue galaxy is disrupted and has new star formation which strongly suggests it is the interloper.
  • Poets envisioned him as a handsome interloper from the east, with a shoulder blade made of ivory.
  • It seems oddly fitting for a people who are perpetual outsiders that even their patron saint is an interloper.
  • Nothing happened by chance, only as an effect of spell-casting by a wicked interloper.
British Dictionary definitions for interloper


an intruder
a person who introduces himself into professional or social circles where he does not belong
a person who interferes in matters that are not his concern
a person who trades unlawfully
Word Origin
C17: from inter- + loper, from Middle Dutch loopen to leap
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for interloper
c.1590, "unauthorized trader trespassing on privileges of chartered companies," probably from inter- "between" + -loper, from landloper "vagabond, adventurer" (also "a term of reproach used by seamen of those who pass their lives on shore" [Johnson]), from M.Du. loper "runner, rover," from lopen "to run." General sense of "self-interested intruder" is from 1632.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of The Day

Word Value for interloper

Scrabble Words With Friends

Quotes with interloper