Heavy
Heavy adjective - Causing weariness, restlessness, or lack of interest.
Usage example: the study of history doesn't have to be all about dull heavy reading and the memorization of dates
Tedious is a synonym for heavy in character trait topic. In some cases you can use "Tedious" instead an adjective "Heavy", when it comes to topics like difficult, dull, onerous.
Mutual synonyms
Both words in one sentence
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Blocks are usually heavy and so pushing or pulling them is a vexingly slow and tedious process.
Source: Block Puzzle -
It's not quite as overplayed as some of the other maps above, though, due to being rather tedious (those safes are extremely heavy, and you need to carry them across a very large and very wide-open map, with only a slow and ungainly truck to make things quicker).
Source: Abridged Arena Array
Cite this Source
Tedious and Heavy. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/heavy/tedious
Heavy & Tedious. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/heavy/tedious>.
Tedious or Heavy. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/heavy/tedious.
Google Ngram Viewer shows how "heavy" and "tedious" have occurred on timeline