Harmful
Virulent
Virulent adjective - Having or showing a desire to cause someone pain or suffering for the sheer enjoyment of it.
Harmful is a synonym for virulent in poisonous topic. You can use "Harmful" instead an adjective "Virulent", if it concerns topics such as severe, having or causing cancer.
Nearby Word: virulence
Mutual synonyms
Related pairs
Cite this Source
Virulent and Harmful. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/harmful/virulent
Harmful & Virulent. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/harmful/virulent>.
Virulent or Harmful. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/harmful/virulent.
Google Ngram Viewer shows how "harmful" and "virulent" have occurred on timeline