[ 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.

Nearby words

  1. interlocking directorates,
  2. interlocution,
  3. interlocutor,
  4. interlocutory,
  5. interlope,
  6. interlude,
  7. interlunar,
  8. interlunation,
  9. intermarriage,
  10. intermarry

Origin of interloper

1585–95;inter- + -loper (see landloper) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for interloper

British Dictionary definitions for interloper


/ (ˈɪntəˌləʊpə) /


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 for interloper

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

Word Origin and History for interloper



1590s, enterloper, "unauthorized trader trespassing on privileges of chartered companies," probably a hybrid from inter- "between" + -loper (from landloper "vagabond, adventurer," also, according to Johnson, "a term of reproach used by seamen of those who pass their lives on shore"); perhaps a dialectal form of leap, or from Middle Dutch loper "runner, rover," from lopen "to run." General sense of "self-interested intruder" is from 1630s.

Online Etymology Dictionary, © 2010 Douglas Harper