extraterrestrial

From Wiktionary

Noun[change]

Singular
extraterrestrial

Plural
extraterrestrials

  1. An extraterrestrial is a being coming from a world other than Earth, whose true existence has not yet been proved.
    Popular representations of extraterrestrials often make them be little skinny humanoids with a large skull, wide black eyes and a green or grey skin.
  2. (metaphorical) An extraterrestrial can also be so an uncommon person that ordinary people think he or she cannot be from Earth.
    Joseph von Neumann had so exceptional intellectual abilities that his neighbouring considered him an extraterrestrial.

Related words[change]

Adjective[change]

Positive
extraterrestrial

Comparative
more extraterrestrial

Superlative
most extraterrestrial

  1. Extraterrestrial can be applied to anything not coming from the Earth or not belonging to the Earth.
    Meteorites falling on the Earth's ground come from outer space : they are extraterrestrial objects.