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Showing results for interloper. Search instead for interlopers.
Synonyms

interloper

American  
[in-ter-loh-per] / ˈɪn tərˌloʊ pər /

noun

  1. a person who interferes or meddles in the affairs of others.

    He was an atheist who felt like an interloper in this religious gathering.

  2. an intruder; trespasser.

  3. a person who intrudes into some region or field of trade without a proper license.


interloper British  
/ ˈɪntəˌləʊpə /

noun

  1. an intruder

  2. a person who introduces himself into professional or social circles where he does not belong

  3. a person who interferes in matters that are not his concern

  4. a person who trades unlawfully

"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

Etymology

Origin of interloper

First recorded in 1585–95; inter- + lope + -er 1 ( def. )

Explanation

If you intrude on people without their permission, you are an interloper. An interloper crashes parties and laughs at "No Trespassing" signs. Interloper was likely formed by combining inter-, ("between") with -loper, (from landloper, meaning "vagabond" or "adventurer"). An interloper, then, is someone who has ventured or traveled where he was not welcome. The noun interloper may also refer to something other than a person: "The new chain superstore built at the edge of town and was an interloper among the various mom-and-pop grocery stores in the area."

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Vocabulary lists containing interloper

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Yet O’Connor condemned RIH’s move as an underhanded gambit to “circumvent” his authority, as though he alone had a claim to litigate this dispute and McElroy was an impudent interloper.

From Slate May 19, 2026

Callanan’s habit of taking a swipe at the American Ellmann in one footnote after another is almost endearing, even when it leaves the impression of snatching a piece of property back from an interloper.

From The Wall Street Journal Apr. 24, 2026

Mr. B. eventually moved on and the interloper, dubbed Shadow, moved in.

From Los Angeles Times Mar. 3, 2026

It wasn’t long ago that the thought of even a single interloper breaking into the ultraexclusive championship club seemed about as far-fetched as Nick Saban taking up stand-up comedy.

From The Wall Street Journal Jan. 2, 2026

There I was an interloper, wandering in rooms that did not know me, sitting at a desk and in a chair that was not mine.

From "Rebecca" by Daphne du Maurier

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