Frightful
Frightful adjective - Causing fear.
Virulently and frightful are semantically related. In some cases you can replace term "Virulently" with "Frightful", this adjectives are similar.
Virulently
Virulently adverb - In a mean or spiteful manner.
Frightful and virulently are semantically related. Sometimes you can use "Frightful" instead an adjective "Virulently".
Cite this Source
Virulently and Frightful. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/frightful/virulently
Frightful & Virulently. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/frightful/virulently>.
Virulently or Frightful. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/frightful/virulently.
Google Ngram Viewer shows how "frightful" and "virulently" have occurred on timeline