Assail
Assail verb - To criticize harshly and usually publicly.
Usage example: the union organizers assailed the chemical company for failing to provide a safe working environment
Slander and assail are semantically related in denounce topic. In some cases you can use "Slander" instead a verb "Assail", when it comes to topics like disparage.
Cite this Source
Slander and Assail. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/assail/slander
Assail & Slander. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/assail/slander>.
Slander or Assail. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/assail/slander.
Google Ngram Viewer shows how "assail" and "slander" have occurred on timeline