extraterrestrian

/ˌɛkstɹətəˈɹɛstɹiən/

noun

Synonym of extraterrestrial.

Scrabble 23

Meanings

nounextraterrestrian (plural extraterrestrians)

plural extraterrestrians · alternative extra-terrestrian · alternative extra terrestrian

  1. Synonym of extraterrestrial.

    How could we explain our Now to an extraterrestrian?

    2011, Susie Vrobel, chapter 11, in Fractal Time: Why a Watched Kettle Never Boils, page 229
    2 more examples

    To the amazement of the extra-terrestrians, Arcot’s first move was to create a titanic plane of artificial matter, and neatly bisect the Thought at the middle!

    1932, J. W. Campbell, Jr., Invaders from the Infinite in Amazing Stories Quarterly, numbers Spring–Summer, page 226/2

    But one day they are getting in touch with extra-terrestrians from Spaceland, who are able to see, think and act in three dimensions.

    2001, Stefan Huber and René Sieber, “From Flatland to Spaceland: Concepts for Interactive 3D Navigation in High Standard Atlases”, in Proceedings of the 20th International Cartographic Conference (ICC 2001), page 1

    Synonyms: extraterrestrial

adjectiveextraterrestrian (comparative more extraterrestrian, superlative most extraterrestrian)

comparative more extraterrestrian · superlative most extraterrestrian · alternative extra-terrestrian · alternative extra terrestrian

  1. Synonym of extraterrestrial.

    For instance, even the hypothesis ‘There is extraterrestrian life and Kepler’s laws hold’ is logically stronger than Kepler’s laws alone, but we would not like to say that this hypothesis can be confirmed by, let’s say, observing the orbit of Jupiter.

    2011, Jan Sprenger, edited by Dov M. Gabbay, Stephan Hartmann, and John Woods, Hempel and the Paradoxes of Confirmation (Handbook of the History of Logic), volume Inductive Logic, number 10, Elsevier, page 240

    Synonyms: extraterrestrial

Synonyms & antonyms

nounSynonym of extraterrestrial.

adjectiveSynonym of extraterrestrial.

Cite this entry
APA

extraterrestrian. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/extraterrestrian

MLA

“extraterrestrian.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/extraterrestrian. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “extraterrestrian,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/extraterrestrian.

Source: extraterrestrian on Wiktionary, CC BY-SA 4.0.