Challenging
Challenging adjective - Requiring considerable physical or mental effort.
Usage example: an exceptionally challenging brainteaser
Stiff and challenging are semantically related in difficult topic. In some cases you can use "Stiff" instead an adjective "Challenging".
Stiff
Stiff adjective - Requiring considerable physical or mental effort.
Usage example: we'll have a stiff climb to actually reach the summit
Challenging and stiff are semantically related in difficult topic. Sometimes you can use "Challenging" instead an adjective "Stiff".
Mutual synonyms
Related pairs
- strenuous and challenging
- strenuous and stiff
- rigid and challenging
- rigid and stiff
- obstinate and challenging
- obstinate and stiff
- unyielding and challenging
- unyielding and stiff
- awkward and challenging
- awkward and stiff
- difficult and challenging
- difficult and stiff
- rough and challenging
- rough and stiff
Cite this Source
Stiff and Challenging. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/challenging/stiff
Challenging & Stiff. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/challenging/stiff>.
Stiff or Challenging. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/challenging/stiff.
Google Ngram Viewer shows how "challenging" and "stiff" have occurred on timeline