An alien is any person who is not a citizen of a certain country or nation.
The word “alien” is derived from the Latin alienus, meaning stranger, foreign, etym “belong to you (elsewhere)” Similar words for “alien” in this context include a foreigner and a resident.
In other words, Alien means to belong to a foreign nation, race, or group, often disliked or frightened of.
You are using an alien to describe something that looks strange and perhaps scary, because it is not part of your normal experience.
Adjective Words to Describe Aliens
| Word | Meaning or Sentence Example |
| abroad | far away from home or one’s usual surroundings |
| beasties | These beasties frequently strut their extraterrestrial stuff |
| creatures | a living organism |
| earthlings | an inhabitant of the earth |
| Estrange | arouse hostility or indifference in where there had formerly been |
| exotic | being or from or characteristic of another place or part of the world |
| expatriates | someone who is voluntarily absent from one’s native home or country |
| extraterrestrial | originating or located or occurring outside Earth or its atmosphere |
| extrinsic | not forming an essential part of a thing or arising or originating from the outside |
| foreigner | a person who comes from a foreign country; someone who does not owe allegiance to your country |
| immigrants | a person who comes to a country where they were not born in order to settle there |
| Martians | imaginary people who live on the planet Mars |
| migrants | traveler who moves from one region or country to another |
| monsters | an imaginary creature usually having various human and animal parts |
| off-shore | away from shore; away from land |
| outer space | any location outside the Earth’s atmosphere |
| outlander | a person who comes from a foreign country; someone who does not owe allegiance to your country |
| outsiders | a constestant (human or animal) not considered to have a good chance to win |
| spacemen | a person trained to travel in a spacecraft |
| strange | being definitely out of the ordinary and unexpected; slightly odd or even a bit weird |
| ufos | an (apparently) flying object whose nature is unknown; especially those considered to have extraterrestrial origins |
| unknown | being or having an unknown or unnamed source |
| zombies | someone who acts or responds in a mechanical or apathetic way |