39 entries under heavy topic. ×

11
tedious(adjective, dull, boring, monotonous, irritating)
10
tiresome(adjective, dull, severe, harsh)
6
toilsome(adjective, hard, tough, severe, rough)
5
taxing(adjective, hard, tough, severe, difficult)
4
severe(adjective, hard, tough, rough, difficult)
2
grueling(adjective, hard, tough, severe, difficult)
2
uphill(adjective, hard, tough, rough, difficult)
1
Herculean(adjective, hard, tough, rough, difficult)
1
backbreaking(adjective, hard, severe, rough, difficult)
1
bothersome(adjective, tough, rough, difficult)
1
complicated(adjective, tough, rough, difficult)
1
difficile(adjective, tough, rough, difficult)
1
distressing(adjective, tough, severe, rough, difficult)
1
effortful(adjective, hard, tough, rough, difficult)
1
formidable(adjective, hard, tough, severe, rough)
1
grinding(adjective, tough, severe, rough, difficult)
1
hairy(adjective, tough, rough, difficult)
1
involved(adjective, tough, rough, difficult)
1
knotty(adjective, tough, rough, difficult)
1
labored(adjective, hard, tough, rough, difficult)
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APASmart Define. (2015). fatiguing thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fatiguing/thesaurus/synonyms
ChicagoSmart Define. 2015. "fatiguing thesaurus" https://smartdefine.org/fatiguing/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, fatiguing thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fatiguing/thesaurus/synonyms>.
MLASmart Define. "fatiguing thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/fatiguing/thesaurus/synonyms>