Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Usage example: difficult questions on the exam that required analytical thinking
Heavy is a synonym for difficult in hard topic. In some cases you can use "Heavy" instead the word "Difficult" as an adjective or a noun, when it comes to topics like troublesome, oppressive, burdensome, hard to do. popular alternative
Nearby Word: difficulty
Heavy
Heavy adjective - Requiring considerable physical or mental effort.
Usage example: until we find our groove, it's going to be heavy sledding on this project
Difficult is a synonym for heavy in onerous topic. You can use "Difficult" instead an adjective "Heavy", if it concerns topics such as hard, serious, troublesome, burdensome. popular alternative
Mutual synonyms
Both words in one sentence
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His covering WWI has left his brain a bit broken, and if he finds the Two-Edged Sword, he has the same problem Anthony had with it that Paul didn't — it's heavy and difficult for a scrawny guy to wield.
Source: Video Game / Eternal Darkness -
Nintendo Hard: The more difficult charts require heavy amounts of memorization to get decent scores on.
Source: Video Game / Tone Sphere -
Players can escape the troll's grip by repeatedly pressing the "Flap" button.A little-known sequel was produced, with the new ability to transform your mount into a flying unicorn (very heavy and difficult to keep in the air, but easier to kill enemies with) but it saw very limited distribution.
Source: Video Game / Joust
Cite this Source
Heavy and Difficult. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/difficult/heavy
Difficult & Heavy. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/difficult/heavy>.
Heavy or Difficult. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/difficult/heavy.
Google Ngram Viewer shows how "difficult" and "heavy" have occurred on timeline