Interloper

Definitions

1. One who interferes, intrudes or gets involved where not welcome, particularly a self-interested intruder.
2. An unlicensed or illegitimate trader.
   obsolete

Equivalents

Examples

“They disliked the interloper, and forced him to leave⟳.”

“In a button-up plaid shirt with an unwieldly suitcase, he is an interloper from another world – one whose first social faux pas is to make⟳ his way slowly through the various gates and arrive⟳ at the imposing front door on foot, rather than wait⟳ to be picked up from the train⟳ station by a servant.”

CEFR level