extra-terrestrial
Not from Earth
Extra-terrestrial describes anything originating or existing beyond Earth: extra-terrestrial life, extra-terrestrial intelligence.
As a noun, an extra-terrestrial is a being from another world—an alien.
The word gained popular currency through science fiction and discussions of whether life exists elsewhere in the universe.
Also spelled extraterrestrial.
Unidentified aerial craft
- abductionUnlawful seizure of person
- RoswellNew Mexico city, UFO-famous
- greyNeutral achromatic tone
- xenomorphForeign biological entity
invasion · mothership · probe · implant · sighting · humanoid · lifeform · organism
Orderly totality of existence
- galaxyGravitationally bound stellar mass
- exoplanetPlanet outside our system
- orbitCurved celestial path
- asteroidSun-orbiting rocky mass
planet · star · universe · telescope · SETI · Kepler · lightyear · deep-space
Extraterrestrial being
- xenomorphForeign biological entity
- PredatorAlien species hunting humans
- invasionForcible entry into territory
- mothershipPrimary vessel carrying others
Spielberg · ray-gun · martian · body-snatcher · interspecies
Not yet clarified
- unidentifiedNot yet recognized
- enigmaSomething hard to fathom
- anomalyDeparture from the expected
- sightingInstance of perceiving something
phenomenon · conspiracy · cover-up · classified · disclosure · evidence · witness · encounter
UFO
Unidentified aerial craft
xenomorph · invasion · mothership · probe · implant · sighting · humanoid · lifeform · organism · intelligence
cosmos
Orderly totality of existence
- galaxyGravitationally bound stellar mass
- exoplanetPlanet outside our system
- orbitCurved celestial path
asteroid · planet · star · universe · telescope · SETI · Kepler · lightyear · deep-space · astrobiology
E.T.
Extraterrestrial being
- xenomorphForeign biological entity
- PredatorAlien species hunting humans
- invasionForcible entry into territory
Spielberg · mothership · ray-gun · martian · body-snatcher · interspecies
unexplained
Not yet clarified
- unidentifiedNot yet recognized
- enigmaSomething hard to fathom
- anomalyDeparture from the expected
sighting · phenomenon · conspiracy · cover-up · classified · disclosure · evidence · witness · encounter · paranormal
extra-terrestrialterrestrial
Relating to land
earthly · earthbound · native · indigenous · local
extra-terrestrialterrestrial
Relating to land
earthly · planetary · mundane · worldly · atmospheric