extraterrestrial
From another planet
Extraterrestrial means originating or existing outside Earth or its atmosphere.
As an adjective, it describes phenomena beyond our planet: extraterrestrial life, extraterrestrial intelligence.
As a noun, an extraterrestrial is a being from another world—the alien of science fiction.
The word is often shortened to ET: The search for ET continues.
Supernatural or eerie
- alienNon-native being
- strangeUnusual or unfamiliar
- bizarreStrikingly unconventional
- uncannyEerily beyond normal
eerie · unfamiliar · outlandish · foreign · weird · anomalous · inhuman · nonhuman
Planet outside our system
- KeplerPlanetary motion law formulator
- SETIQuest for cosmic signals
- probeThorough examination or tool
- VoyagerNASA interstellar mission name
interstellar · telescope · Mars · Europa · Titan · Enceladus · transit · detection
Small plate beneath cup
- RoswellNew Mexico city, UFO-famous
- abductionUnlawful seizure of person
- sightingInstance of perceiving something
- encounterUnexpected meeting or confrontation
unidentified · flyby · hover · crash · conspiracy · cover-up · disclosure · lights
Foreign biological entity
- humanoidBeing with body like ours
- martianNative of fourth planet
- invaderOne who enters aggressively
- creatureLiving, sentient entity
lifeform · beings · intelligence · species · grey · reptilian · hybrid · abductee
Futuristic fiction, abbreviated
- E.T.Extraterrestrial being
- PredatorAlien species hunting humans
- invasionForcible entry into territory
- mothershipPrimary vessel carrying others
Spielberg · ray-gun · telepathy · abduction · spaceship · intergalactic
Organisms surviving extreme conditions
- exobiologyStudy of cosmic life
- biosignatureEvidence of living processes
- habitabilitySuitability for dwelling
- microbialOf microscopic organisms
panspermia · SETI · tardigrade · organic · carbon-based · silicon-based · biomarker · abiogenesis
unearthly
Supernatural or eerie
uncanny · eerie · unfamiliar · outlandish · foreign · weird · anomalous · inhuman · nonhuman · cosmic
exoplanet
Planet outside our system
Voyager · interstellar · telescope · Mars · Europa · Titan · Enceladus · transit · detection · survey
saucer
Small plate beneath cup
- RoswellNew Mexico city, UFO-famous
- abductionUnlawful seizure of person
- sightingInstance of perceiving something
encounter · unidentified · flyby · hover · crash · conspiracy · cover-up · disclosure · lights · greys
xenomorph
Foreign biological entity
creature · lifeform · beings · intelligence · species · grey · reptilian · hybrid · abductee · contact
sci-fi
Futuristic fiction, abbreviated
Spielberg · mothership · ray-gun · telepathy · abduction · spaceship · intergalactic
extremophiles
Organisms surviving extreme conditions
- exobiologyStudy of cosmic life
- biosignatureEvidence of living processes
- habitabilitySuitability for dwelling
microbial · panspermia · SETI · tardigrade · organic · carbon-based · silicon-based · biomarker · abiogenesis
- long wordssupercalifragilisticexpialidocious, antidisestablishmentarianism, incomprehensibilities, counterrevolutionary, electroencephalograph
- beingsbeings, being, entities, entity, creatures
- sci-fiscience fiction, Star Wars, sci-fi, Blade Runner 2049, aliens
- space termsmoon, star, planet, rocket, satellite
- Extraterrestrialsalien, aliens, ET, UFO, flying saucer
- Sci-Fi Termsfuturistic, alien, robotic, cybernetic, galactic
extraterrestrialterrestrial
Relating to land
earthly · earthborn · earthbound · tellurian · worldly
extraterrestrialhuman
Homo sapiens individual
earthling · Homo sapiens · mankind · native · indigenous
extraterrestrialterrestrial
Relating to land
earthly · subterranean · atmospheric · oceanic · geological
- extraterrestrial lifeOrganisms existing beyond Earth
- extraterrestrial contactCommunication with beings from space
- extraterrestrial intelligenceNon-Earth cognitive beings
- extraterrestrial beingsLife from other planets
- extraterrestrial encountersInteractions with beings from space
- extraterrestrial spacecraftAlien-built vehicle for travel