36 entries under heavy topic. ×

9
toilsome(adjective, hard, rough, difficult)
8
severe(adjective, hard, tough, rough, difficult)
8
tedious(adjective, dull, boring, monotonous, irritating)
8
tiresome(adjective, dull, hard, severe, harsh)
6
taxing(adjective, hard, severe, difficult)
4
grueling(adjective, hard, tough, severe, difficult)
4
rigorous(adjective, hard, tough, severe, rough)
4
uphill(adjective, hard, rough, difficult)
2
Herculean(adjective, tough, rough, difficult)
2
backbreaking(adjective, hard, severe, rough, difficult)
2
distressing(adjective, tough, severe, rough, difficult)
2
effortful(adjective, hard, severe, rough, difficult)
2
formidable(adjective, hard, tough, severe, rough)
2
grinding(adjective, tough, severe, rough, difficult)
2
operose(adjective, hard, tough, rough, difficult)
2
rough(adjective, hard, tough, difficult)
1
bothersome(adjective, hard, tough, rough, difficult)
1
hairy(adjective, hard, tough, severe, rough)
1
knotty(adjective, hard, tough, severe, rough)
1
labored(adjective, hard, tough, severe, rough)
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APASmart Define. (2016). exhausting thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/exhausting/thesaurus/synonyms
ChicagoSmart Define. 2016. "exhausting thesaurus" https://smartdefine.org/exhausting/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, exhausting thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/exhausting/thesaurus/synonyms>.
MLASmart Define. "exhausting thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/exhausting/thesaurus/synonyms>