35 entries under extraneous topic. ×

23
alien(noun, adjective, not human)
9
foreign(adjective, outside, external)
6
exotic
4
strange
3
extrinsic(adjective, outside, external)
2
external(adjective, outside)
2
eerie(adjective, not human)
2
extraneous(adjective, outside, external)
2
outside(adjective, external)
2
outlandish
2
other
2
outer(adjective, outside, external)
1
foreign-born
1
immaterial
1
impertinent
1
inadmissible
1
inapplicable
1
inappropriate
1
irrelevant
1
detached
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APASmart Define. (2016). extraterrestrial thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/extraterrestrial/thesaurus/synonyms
ChicagoSmart Define. 2016. "extraterrestrial thesaurus" https://smartdefine.org/extraterrestrial/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, extraterrestrial thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/extraterrestrial/thesaurus/synonyms>.
MLASmart Define. "extraterrestrial thesaurus" 15 March 2016. Web. 28 September 2026. <https://smartdefine.org/extraterrestrial/thesaurus/synonyms>