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alien Synonyms

Another word for alien

Choosing another word for alien depends on context, so the 28 synonyms and similar words below are separated across 8 exact definitions and ranked by match strength.
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• adjective (Context 1)

Relating to or originating from a hypothetical or fictional being from another world.

Usage Example

"The movie depicts an ancient extraterrestrial civilization visiting Earth thousands of years ago."

Strongest
extraterrestrial
Strong
otherworldly
unearthly

• noun (Context 2)

A hypothetical or fictional intelligent being from a planet other than Earth.

Usage Example

"The science fiction novel tells the story of a peaceful extraterrestrial stranded on Earth."

Strongest
extraterrestrial
Strong
martian

• adjective (Context 3)

Belonging to a foreign country, nation, or culture; unfamiliar and strange.

Usage Example

"The explorers found themselves in an foreign landscape of jagged volcanic rock."

Strongest
foreign
unfamiliar
Strong
non-native
strange
exotic
unknown

• adjective (Context 4)

Inconsistent with or repugnant to one's nature, beliefs, or accustomed experience (usually followed by 'to').

Usage Example

"Deceit and manipulation were completely foreign to her honest nature."

Strongest
foreign
Strong
contrary
incompatible
antithetical
opposed
repugnant

• noun (Context 5)

A foreigner, especially one who is not a naturalized citizen of the country where they are living.

Usage Example

"Under the new statute, every resident non-citizen was required to register with the local authorities."

Strongest
non-citizen
foreigner
Strong
outsider
stranger
Weak
immigrant

• noun (Context 6)

A plant or animal species introduced to a habitat where it does not naturally occur.

Usage Example

"Conservationists worked to remove the invasive non-native before it could crowd out native wildflowers."

Strongest
non-native
Strong
exotic

• verb (Context 7)

To transfer the ownership of property or a legal right to another person or entity (used chiefly in law).

Usage Example

"The original landowner was legally prohibited from aliening the estate outside the family."

Strongest
alienate
transfer
Strong
convey
make over
cede

• verb (Context 8)

To cause someone to become estranged, indifferent, or hostile (now rare or archaic).

Usage Example

"His harsh decrees gradually aliened the affections of his most loyal supporters."

Strongest
alienate
estrange
Strong
disaffect
drive away

Opposites of alien

The opposite of alien shifts depending on context. Common opposites include:

terrestrial
citizen
earthly
earthling
native
reconcile
natural
domestic
See all opposites of alien

Cite this Entry


Wordmom. (2026). Synonyms for Alien. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/alien
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