Challenging
Challenging adjective - Requiring considerable physical or mental effort.
Usage example: an exceptionally challenging brainteaser
Onerous and challenging are semantically related. in difficult topic. In some cases you can use "Onerous" instead an adjective "Challenging".
Onerous
Onerous adjective - Requiring much time, effort, or careful attention.
Usage example: building the scale model of the frigate was an onerous task
Challenging and onerous are semantically related. You can use "Challenging" instead an adjective "Onerous".
Nearby Word: onerously
Mutual synonyms
Related pairs
- strenuous and challenging
- strenuous and onerous
- demanding and challenging
- demanding and onerous
- difficult and challenging
- difficult and onerous
- heavy and challenging
- heavy and onerous
- ambitious and challenging
- ambitious and onerous
- hard and challenging
- hard and onerous
- severe and challenging
- severe and onerous
Cite this Source
Onerous and Challenging. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/challenging/onerous
Challenging & Onerous. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/challenging/onerous>.
Onerous or Challenging. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/challenging/onerous.
Google Ngram Viewer shows how "challenging" and "onerous" have occurred on timeline