Challenging
Challenging adjective - Requiring considerable physical or mental effort.
Stimulate and challenging are semantically related. in dispute topic. In some cases you can use "Stimulate" instead a verb "Challenging".
Stimulate
Stimulate verb - To give life, vigor, or spirit to.
Challenging and stimulate are semantically related. Sometimes you can replace term "Challenging" with "Stimulate", this verbs are similar.
Both words in one sentence
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The screen reveals a fat guy (character actor Stuart Pankin) lying in a hammock, who berates Garry for not challenging him enough, and they make a deal with each other: Garry will stimulate his brain more, and the brain will work with him.
Source: Animate Body Parts
Cite this Source
Stimulate and Challenging. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/challenging/stimulate
Challenging & Stimulate. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/challenging/stimulate>.
Stimulate or Challenging. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/challenging/stimulate.
Google Ngram Viewer shows how "challenging" and "stimulate" have occurred on timeline