interloper.
One who interferes, intrudes, or gets involved where not welcome; particularly, a self-interested intruder.
Meaning & usage
One who interferes, intrudes, or gets involved where not welcome; particularly, a self-interested intruder.
They disliked the interloper, and forced him to leave.
An unlicensed or illegitimate trader.
Where this word comes from
From inter- + loper (“runner, rover”), as in landloper (“vagrant”) (from lope (“to leap, to jump”) (originally dialectal)). Originally spelt enterloper and used in specific sense, “unauthorized trader trespassing on privileges of chartered companies”, later general sense of “self-interested intruder” from 1630s.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.