Alien and Extraneous

Alien

Alien adjective - Not being a vital part of or belonging to something.
Usage example: it's completely alien to her nature to wish evil of anyone

Extraneous is a synonym for alien in native topic. In some cases you can use "Extraneous" instead an adjective "Alien", when it comes to topics like adverse, opposite, external, foreign. popular alternative

Extraneous

Extraneous adjective - Not being a vital part of or belonging to something.
Usage example: the architect's streamlined modern style shuns any sort of extraneous ornamentation

Alien is a synonym for extraneous in external topic. You can use "Alien" instead the word "Extraneous" as an adjective or a noun, if it concerns topics such as native, adverse, opposite, foreign. popular alternative
Cite this Source
Extraneous and Alien. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/alien/extraneous
Alien & Extraneous. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/alien/extraneous>.
Extraneous or Alien. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/alien/extraneous.
Google Ngram Viewer shows how "alien" and "extraneous" have occurred on timeline