Effortful
Effortful adjective - Requiring considerable physical or mental effort.
Usage example: the book's abstruse subject matter and dense prose make for effortful reading
Rough and effortful are semantically related in heavy topic. In some cases you can use "Rough" instead an adjective "Effortful", when it comes to topics like burdensome.
Mutual synonyms
Cite this Source
Rough and Effortful. (2016). Retrieved 2026, August 18, from https://thesaurus.plus/related/effortful/rough
Effortful & Rough. N.p., 2016. Web. 18 Aug. 2026. <https://thesaurus.plus/related/effortful/rough>.
Rough or Effortful. 2016. Accessed August 18, 2026. https://thesaurus.plus/related/effortful/rough.
Google Ngram Viewer shows how "effortful" and "rough" have occurred on timeline