extraterrestrial

ex-tra-ter-res-tri-al · adjective, noun

imported

Definitions

adjective, noun

  1. 1.

    Of or from outside the earth or its atmosphere.

  2. 2.

    A hypothetical or fictional being from outer space.

  3. 3.

    Relating to beings from other planets.

Forms

plural: extraterrestrials

Phrases & expressions

  • •
    extraterrestrial life — life forms originating outside Earth
  • •
    E.T. — abbreviation for extraterrestrial (popularized by the film)

Related words

Antonyms: earthly, terrestrial
See also: alien, space, terrestrial, universe
Synonyms: alien, otherworldly, outer space

Etymology

From Latin extra ("outside, beyond") + terrestris ("of the earth"), from terra ("earth").