Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Eternal and difficult are semantically related. In some cases you can use "Eternal" instead an adjective "Difficult".
Nearby Word: difficulty
Both words in one sentence
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Every fighter is quite difficult, and the Eternal Champion himself is extremely difficult.
Source: Video Game / Eternal Champions -
Eternal Engine: "The Carrot Factory" in the 1930s, and probably the most difficult level in the entire game.
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Unusually some of these skeletons are sapient and just want to live in peace, something made rather difficult by overzealous clerics trying to grant them eternal rest.
Source: Dem Bones
Cite this Source
Eternal and Difficult. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/difficult/eternal
Difficult & Eternal. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/difficult/eternal>.
Eternal or Difficult. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/difficult/eternal.
Google Ngram Viewer shows how "difficult" and "eternal" have occurred on timeline