Formidable
Formidable adjective - Causing fear.
Rigourous and formidable are semantically related in ambitious topic. In some cases you can use "Rigourous" instead an adjective "Formidable", when it comes to topics like challenging.
Nearby Word: formidably
Rigourous
Formidable and rigourous are semantically related in ambitious topic. Sometimes you can use "Formidable" instead an adjective "Rigourous", if it concerns topics such as challenging.
Mutual synonyms
Related pairs
- stiff and formidable
- stiff and rigourous
- demanding and formidable
- demanding and rigourous
- harsh and formidable
- harsh and rigourous
- difficult and formidable
- difficult and rigourous
- ambitious and formidable
- ambitious and rigourous
- strong and formidable
- strong and rigourous
- hard and formidable
- hard and rigourous
Cite this Source
Rigourous and Formidable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/formidable/rigourous
Formidable & Rigourous. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/formidable/rigourous>.
Rigourous or Formidable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/formidable/rigourous.
Google Ngram Viewer shows how "formidable" and "rigourous" have occurred on timeline