Challenging
Challenging adjective - Requiring considerable physical or mental effort.
Usage example: an exceptionally challenging brainteaser
Hellacious and challenging are semantically related. In some cases you can use "Hellacious" instead an adjective "Challenging".
Hellacious
Hellacious adjective - Requiring considerable physical or mental effort.
Usage example: the pioneers survived a particularly hellacious river crossing with their covered wagon barely in one piece
Challenging and hellacious are semantically related. Sometimes you can use "Challenging" instead an adjective "Hellacious".
Mutual synonyms
Related pairs
- strenuous and challenging
- strenuous and hellacious
- stiff and challenging
- stiff and hellacious
- demanding and challenging
- demanding and hellacious
- difficult and challenging
- difficult and hellacious
- rough and challenging
- rough and hellacious
- rugged and challenging
- rugged and hellacious
- heavy and challenging
- heavy and hellacious
Cite this Source
Hellacious and Challenging. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/challenging/hellacious
Challenging & Hellacious. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/challenging/hellacious>.
Hellacious or Challenging. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/challenging/hellacious.
Google Ngram Viewer shows how "challenging" and "hellacious" have occurred on timeline