Challenging
Challenging adjective - Requiring considerable physical or mental effort.
Interesting and challenging are semantically related. In some cases you can use "Interesting" instead an adjective "Challenging".
Interesting
Interesting adjective - Holding the attention or provoking interest.
Challenging and interesting are semantically related. Sometimes you can use "Challenging" instead an adjective "Interesting".
Mutual synonyms
Both words in one sentence
- The united forces against you are supposed to be more challenging and interesting than mopping up nations one-by-one.
Source: Unstable Equilibrium -
Interestingly, genlocks, which were the weakest darkspawn in-universe, had the most interesting and challenging Alphas.
Source: Elite Mooks - Be warned though, it can get a bit grindy at points, but other than that it's a pretty interesting and challenging hack for experienced EarthBound players. Oh!
Source: Fanfic Recs / EarthBound
Cite this Source
Interesting and Challenging. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/challenging/interesting
Challenging & Interesting. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/challenging/interesting>.
Interesting or Challenging. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/challenging/interesting.
Google Ngram Viewer shows how "challenging" and "interesting" have occurred on timeline