Pernicious and Sinister

Pernicious

Pernicious adjective - Causing or capable of causing harm.
Usage example: the pernicious effects of illegal narcotics on society

Sinister is a synonym for pernicious in corrupt topic. In some cases you can use "Sinister" instead an adjective "Pernicious", when it comes to topics like bad.

Nearby Word: perniciously

Sinister

Sinister adjective - Being or showing a sign of evil or calamity to come.

Pernicious is a synonym for sinister in corrupt topic. You can use "Pernicious" instead an adjective "Sinister", if it concerns topics such as nasty.
Cite this Source
Sinister and Pernicious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/pernicious/sinister
Pernicious & Sinister. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/pernicious/sinister>.
Sinister or Pernicious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/pernicious/sinister.
Google Ngram Viewer shows how "pernicious" and "sinister" have occurred on timeline