Formidable and Harmless
Opposite meaning words
Formidable
Harmless
Harmless adjective - Not causing or being capable of causing injury or hurt.
Formidable is an antonym for harmless.
Cite this Source
Harmless and Formidable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/formidable/harmless
Formidable & Harmless. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/formidable/harmless>.
Harmless or Formidable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/formidable/harmless.
Google Ngram Viewer shows how "formidable" and "harmless" have occurred on timeline