Challenging
Challenging adjective - Requiring considerable physical or mental effort.
Invigorative and challenging are semantically related. In some cases you can use "Invigorative" instead an adjective "Challenging".
Invigorative
Challenging and invigorative are semantically related. Sometimes you can use "Challenging" instead an adjective "Invigorative".
Mutual synonyms
Cite this Source
Invigorative and Challenging. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/challenging/invigorative
Challenging & Invigorative. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/challenging/invigorative>.
Invigorative or Challenging. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/challenging/invigorative.
Google Ngram Viewer shows how "challenging" and "invigorative" have occurred on timeline