illegal immigrant

noun

variants or illegal alien
plural illegal immigrants or illegal aliens
usually offensive
: a person who enters or lives in a country without the documentation required for legal entry or residence

Word History

First Known Use

1883, in the meaning defined above

Time Traveler
The first known use of illegal immigrant was in 1883

Browse Nearby Words

Cite this Entry

“Illegal immigrant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/illegal%20immigrant. Accessed 6 Nov. 2025.

Last Updated: - Entry added
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!