Challenging
Challenging adjective - Requiring considerable physical or mental effort.
Scabrous and challenging are semantically related. In some cases you can use "Scabrous" instead an adjective "Challenging".
Scabrous
Scabrous adjective - Rough to the touch; covered with scales or scurf.
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Synonyms for Scabrous
Challenging and scabrous are semantically related. Sometimes you can use "Challenging" instead an adjective "Scabrous".
Cite this Source
Scabrous and Challenging. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/challenging/scabrous
Challenging & Scabrous. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/challenging/scabrous>.
Scabrous or Challenging. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/challenging/scabrous.
Google Ngram Viewer shows how "challenging" and "scabrous" have occurred on timeline