Challenging
Challenging adjective - Requiring considerable physical or mental effort.
Rigourous and challenging are semantically related in ambitious topic. In some cases you can use "Rigourous" instead an adjective "Challenging".
Rigourous
Challenging and rigourous are semantically related in ambitious topic. Sometimes you can use "Challenging" instead an adjective "Rigourous".
Mutual synonyms
Related pairs
- rigid and challenging
- rigid and rigourous
- stiff and challenging
- stiff and rigourous
- demanding and challenging
- demanding and rigourous
- difficult and challenging
- difficult and rigourous
- painful and challenging
- painful and rigourous
- ambitious and challenging
- ambitious and rigourous
- hard and challenging
- hard and rigourous
Cite this Source
Rigourous and Challenging. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/challenging/rigourous
Challenging & Rigourous. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/challenging/rigourous>.
Rigourous or Challenging. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/challenging/rigourous.
Google Ngram Viewer shows how "challenging" and "rigourous" have occurred on timeline