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adjective \ˈā-lē-ən, ˈāl-yən\

Simple Definition of alien

  • : not familiar or like other things you have known : different from what you are used to

  • : from another country

  • : too different from something to be acceptable or suitable

Full Definition of alien

  1. 1 a :  belonging or relating to another person, place, or thing :  strange b :  relating, belonging, or owing allegiance to another country or government :  foreign c :  exotic 1

  2. 2 :  differing in nature or character typically to the point of incompatibility

alien·ly adverb
alien·nessplay \-lē-ən-nəs, -yən-nəs\ noun

Examples of alien

  1. <new immigrants with customs alien to the community where they have settled>

  2. <it's completely alien to her nature to wish evil of anyone>

Origin of alien

Middle English, from Anglo-French, from Latin alienus, from alius

First Known Use: 14th century

Synonym Discussion of alien

extrinsic, extraneous, foreign, alien mean external to a thing, its essential nature, or its original character. 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>. 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>. 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 is stronger than foreign in suggesting opposition, repugnance, or irreconcilability <a practice totally alien to her nature>.




Simple Definition of alien

  • : a person who was born in a different country and is not a citizen of the country in which he or she now lives

  • : a creature that comes from somewhere other than the planet Earth

Full Definition of alien

  1. 1 :  a person of another family, race, or nation

  2. 2 :  a foreign-born resident who has not been naturalized and is still a subject or citizen of a foreign country; broadly :  a foreign-born citizen

  3. 3 :  extraterrestrial

  4. 4 :  exotic 1

Examples of alien

  1. aliens seeking asylum in the U.S.

  2. He claims that he was captured by space aliens.

14th Century

First Known Use of alien

14th century




Definition of alien

  1. transitive verb
  2. 1 :  alienate, estrange

  3. 2 :  to make over (as property)

Examples of alien

  1. <such emotional cruelty will rapidly alien any friends you might possibly have left>

  2. <the couple plans to alien the adjoining house lot to their eldest son>

14th Century

First Known Use of alien

14th century

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February 7, 2016

a slight offense

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