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
Steven Spielberg may have an alien pic in theaters with Disclosure Day, but Grande gave the UFO at the end of Close Encounters of the Third Kind a run for its money in terms of sheer climax. Anthony D'alessandro, Deadline, 19 June 2026 Dawn’s main character, Lilith, awakens in the care of an alien species long after Earth has been destroyed by nuclear war. Boris Kachka, The Atlantic, 19 June 2026
Noun
In the film's final moments, Hugo and his associates wheel a living, breathing alien into the news station. Wesley Stenzel, Entertainment Weekly, 12 June 2026 The alien is first believed to be a villain, but his motivations are slowly revealed to be morally gray. Brianne Kane, Scientific American, 12 June 2026 See All Example Sentences for alien
Recent Examples of Synonyms for alien
Adjective
  • Earlier this month, Anthropic disabled customer access to both Mythos and Fable to comply with the US government’s order to suspend all use by foreign nationals — including Anthropic employees themselves.
    Hadas Gold, CNN Money, 27 June 2026
  • Rothrock said there is no specific type of offender, such as a foreign visitor unaware of American laws.
    Marvin Hurst, CBS News, 26 June 2026
Adjective
  • To me that’s irrelevant in terms of this storytelling.
    K.J. Yossman, Variety, 21 June 2026
  • Whether the governmental entity later does anything with the complaint (here, the Board did not) is irrelevant.
    Jay Adkisson, Forbes.com, 21 June 2026
Verb
  • Younger, more far left candidates across the nation, from California to Indiana, are running this year to try and oust older, longtime congressional incumbents — angering Democratic Party leaders.
    Joe Battenfeld, Boston Herald, 25 June 2026
  • Not further angering Republicans took precedence over protecting the creative freedom of CBS’ producing partners.
    Josef Adalian, Vulture, 25 June 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
  • Learn how to cook lionfish ceviche, jerk chicken, and more with a group of like-minded people from all over the world, concluding with an alfresco feast—a true one-of-a-kind connection between strangers.
    Condé Nast, Condé Nast Traveler, 26 June 2026
  • Exotic animals in Real County Sheriff Nathan Johnson said the mild climate and rugged terrain of the Texas Hill Country seems to serve as a good stand-in for most of the animals' native African environments, and is no stranger to tracking missing animals, especially after floods.
    Steven Rosenbaum, CBS News, 26 June 2026
Adjective
  • Denver’s brass was asked about those comments on Wednesday, and Wallace responded by sharing some thoughts on the team’s internal and external goals.
    Bennett Durando, Denver Post, 26 June 2026
  • Internal balconies were illuminated by faint blue lights in constellation displays, half-hidden among the foliage to create an illusion of the external edifice of some tropical villa.
    Jeff Spry, Space.com, 26 June 2026
Verb
  • Yet meaningful change has been slow to materialize, souring views of Starmer’s premiership and inflicting heavy losses on the Labour Party in local government elections in May, which virtually sealed his fate.
    Hanna Ziady, CNN Money, 23 June 2026
  • After their friendship soured, Swift and Lively have apparently been trying to mend their previously unbreakable bond.
    Allison DeGrushe, StyleCaster, 22 June 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 29 Jun. 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