Definition of interloper
: one that interlopes: such as
a
: one that intrudes in a place or sphere of activity
b
: an illegal or unlicensed trader
Buying Guide
Our Reviews team has selected the best home security camera systems.
Test Your Vocabulary
Great Words for Scrabble
-
- Which of the following Q-without-U words means the number five in cards or dice?

Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share interloper
Time Traveler for interloper
The first known use of interloper was circa 1590
See more words from the same year