ALIEN Synonyms: 188 Similar and Opposite Words

Q: 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

Q: 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

Q: 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

Q: 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

alien 1 of 3

adjective

ˈā-lē-ən

Definition of alien next

as in foreign

being, relating to, or characteristic of a country other than one's own they were careful to learn of any alien business customs before trying to expand overseas

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in irrelevant

not being a vital part of or belonging to something it's completely alien to her nature to wish evil of anyone

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Antonyms & Near Antonyms

alien

2 of 3

verb

as in to anger

to cause to change from friendly or loving to unfriendly or uncaring such angry outbursts will rapidly alien any friends you might possibly have left

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Antonyms & Near Antonyms

as in to transfer

to give over the legal possession or ownership of the couple plans to alien the adjoining house lot to their eldest son

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expropriate

alien

3 of 3

noun

as in stranger

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Antonyms & Near Antonyms

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

Central to this mystery are the film’s breathtaking close-ups of the hummingbirds, including lengthy slow-motion passages showing us the absurd speed of their wings, their almost alien ability to suspend themselves in the air, and the ridiculous contortions of their tiny bodies. —

Bilge Ebiri, Vulture, 10 Jan. 2025 Compared to the desolate, almost alien landscape of South Dakota, the North Dakota badlands are flush with vibrant vegetation: Rocky Mountain juniper woodlands, cottonwoods that thrive in the Little Missouri River basin, and sunflowers, asters, and rabbitbrush that bloom in the late summer months. —

Erica Zazo, Outside Online, 9 Jan. 2025

Verb

But even that description fails to capture what Yagi is after: those parts of us, precious and possibly hostile, which flower in darkness, disintegrate when described, and can be compared only to alien life-forms. —

Katy Waldman, The New Yorker, 8 Aug. 2022 Neanderthal to alien, and yet strangely well-suited for the modern era. —

Nick Remsen, CNN, 30 Sep. 2021

Noun

For example, only 10.2 percent of astrobiologists disagreed with the claim that intelligent aliens likely exist. —

Stephen Clark, Ars Technica, 14 Jan. 2025 Jim Krasinski handed his franchise off to the director of Pig and the luminous Lupita Nyong’o to tell a prequel story of the day that the murderous aliens arrived. —

Brian Tallerico, Vulture, 8 Jan. 2025 See all Example Sentences for alien

Recent Examples of Synonyms for alien

Adjective

Jake and Josh both work full-time at Carrick Bros., and the company has eight other seasonal workers, including three from Guatemala who are in Canada through a temporary foreign workers program.

— Peter Baugh, The Athletic, 23 Jan. 2025
Dimon in his remarks said tariffs are ultimatums meant to bring foreign leaders to the table to settle trade disputes.

— Stuart Dyos, Fortune, 23 Jan. 2025