alien 1 of 3

Definition of aliennext

alien

2 of 3

verb

alien

3 of 3

noun

Synonym Chooser

How is the word alien different from other adjectives like it?

Some common synonyms of alien are extraneous, extrinsic, and foreign. While all these words mean "external to a thing, its essential nature, or its original character," alien is stronger than foreign in suggesting opposition, repugnance, or irreconcilability.

a practice totally alien to her nature

In what contexts can extraneous take the place of alien?

The synonyms extraneous and alien are sometimes interchangeable, but extraneous applies to what is on or comes from the outside and may or may not be capable of becoming an essential part.

arguments extraneous to the issue

When is it sensible to use extrinsic instead of alien?

While in some cases nearly identical to alien, extrinsic applies to what is distinctly outside the thing in question or is not contained in or derived from its essential nature.

sentimental value that is extrinsic to the house's market value

When could foreign be used to replace alien?

The words foreign and alien are synonyms, but do differ in nuance. Specifically, foreign applies to what is so different as to be rejected or repelled or to be incapable of becoming assimilated.

techniques foreign to French cuisine

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of alien
Adjective
It's been eight years since the iconic director released a movie in this genre, re-entering his UFO era with a twisted alien thriller. Grace Dean, Space.com, 1 July 2026 For example, a group of minions might be pretending to fight a group of Vikings on a movie set, or enough alien spaceships to fill the entire screen appear and shoot their lasers at once. Parents, 1 July 2026
Noun
In the meantime, the rest of the Minions have found a new boss, a suspiciously humanoid robot alien named Dort (Jesse Eisenberg), in a surreal plot twist that puts a bit of a strain on what little story there already is. Damon Wise, Deadline, 29 June 2026 After season one’s show-altering reveal that Sugar is an alien, his fellow alien species is exposed and harmed by the human powers that be, forcing them to retreat to their home planet. Brian Davids, HollywoodReporter, 27 June 2026 See All Example Sentences for alien
Recent Examples of Synonyms for alien
Adjective
  • There’s no guarantee Lawrence will ever play host to a foreign national soccer team’s World Cup base camp again.
    Gary Bedore, Kansas City Star, 3 July 2026
  • Test your news knowledge with this week's Fox News Digital News Quiz, featuring a primary upset in Colorado, while police identify the Empire State Building climbers as foreign daredevils.
    Staff, FOXNews.com, 3 July 2026
Adjective
  • Without ownership, documentation becomes a museum exhibit that may be informative but irrelevant.
    Raheel Sheikh, Forbes.com, 29 June 2026
  • No detail, no matter how incomplete or far-fetched, was irrelevant to their search.
    Will Mackin, New Yorker, 28 June 2026
Verb
  • The mayor floated the idea to place Williams on probation for six months, angering the city manager’s supporters in the crowd.
    Amanda Rosa, Miami Herald, 3 July 2026
  • All the spending on the national events angers one supervisor at a Florida airport.
    Danya Gainor, CNN Money, 3 July 2026
Verb
  • The sprawling northern territories clear to the Rocky Mountains and beyond transferred to Mexican control.
    Lauren Villagran, USA Today, 28 June 2026
  • Hayden Schuler has transferred from Sierra Canyon.
    Eric Sondheimer, Los Angeles Times, 28 June 2026
Noun
  • My mom is the kind of person who constantly receives compliments from strangers.
    Isabel Bekele, InStyle, 30 June 2026
  • Within a few restless months, the group of strangers have become a fragile family.
    Danielle Parker, CBS News, 30 June 2026
Adjective
  • If internal promotion rates fall and companies lean harder on external senior hires who do not yet exist in sufficient numbers, the warnings from Cortez, DDI, and Korn Ferry will have been correct.
    Cindy Rodriguez Constable, Forbes.com, 1 July 2026
  • Meta is also working to cut its ballooning AI spending by reducing reliance on costly external tools.
    Beatrice Nolan, Fortune, 30 June 2026
Verb
  • But about two years ago, when the Markley Group plopped its second cooling tank behind her above-ground swimming pool, along with a growing number of surveillance cameras, the relationship had soured.
    ABC News, ABC News, 2 July 2026
  • Of course, the game meant nothing, but Türkiye’s late goal in stoppage time gave them a 3-2 victory that soured what appeared to be a 2-2 draw in Los Angeles.
    Scott Thompson, FOXNews.com, 1 July 2026
Verb
  • As Jimmy is looking for options to simultaneously cut costs and jettison the property entirely, Sydney is trying to figure out how to do a dinner service with a pantry that’s nearly empty and a former mentor/partner/colleague, in Carmy, who is very bad at actually ceding control.
    Daniel Fienberg, HollywoodReporter, 25 June 2026
  • And then there was Rafael Devers’ failure to cede first base after a ninth inning walk on Sunday.
    Dan Freedman, Forbes.com, 25 June 2026

Cite this Entry

“Alien.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/alien. Accessed 5 Jul. 2026.

More from Merriam-Webster on alien

Love words? Need even more definitions?

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

More from Merriam-Webster