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extraterrestrial

adjectivenounattested in dialogue

  • //ˌɛk.stɹə.təˈɹɛs.tɹi.əl//

Originating from outside of the Earth's atmosphere, from space, or from another planet; alien to Earth or its environment.

adjective

  1. 1

    Originating from outside of the Earth's atmosphere, from space, or from another planet; alien to Earth or its environment.

    Residents of the city of Voronezh insisted today that lanky, three-eyed extraterrestrial creatures had indeed landed in a local park and gone for a stroll and that a seemingly fantastic report about the event carried Monday by the official press agency Tass was absolutely true.

Etymology

Etymology tree Proto-Indo-European *h₁éǵʰ Proto-Indo-European *-s Proto-Indo-European *h₁éǵʰs Proto-Indo-European *-teros Proto-Indo-European *h₁eǵʰsteros Proto-Italic *eksteros Latin exter Latin extrā English extra- English terrestrial English extraterrestrial From extra- + terrestrial.

noun

  1. 1

    A being originating from outside of the Earth's atmosphere, from space, or from another planet; an alien.

    Smith returns in Men In Black 3 as a veteran agent of a secret organization dedicated to policing the earth’s many extraterrestrials.

Forms

plural
extraterrestrials
comparative
more extraterrestrial
superlative
most extraterrestrial
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).