Nefarious
Nefarious adjective - Not conforming to a high moral standard; morally unacceptable.
Usage example: the chaste heroines and nefarious villains of old-time melodramas
Vicious
Vicious adjective - Not conforming to a high moral standard; morally unacceptable.
Usage example: the truly vicious philosophy of that racist organization
Nefarious is a synonym for vicious in corrupt topic. You can use "Nefarious" instead an adjective "Vicious", if it concerns topics such as evil, sinful.
Nearby Word: viciously
Mutual synonyms
Both words in one sentence
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Blakk's nefarious schemes involve turning all slugs into vicious, evil versions of their species called "ghouls".
Source: Western Animation / Slugterra
Cite this Source
Vicious and Nefarious. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/nefarious/vicious
Nefarious & Vicious. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/nefarious/vicious>.
Vicious or Nefarious. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/nefarious/vicious.
Google Ngram Viewer shows how "nefarious" and "vicious" have occurred on timeline