2
clayey
2
cloggy
2
corrective
2
cutting(adjective, painful)
2
demanding(adjective, hard, tough, severe, difficult)
2
dense
2
disagreeable(adjective, painful)
2
draining(trying, exhausting, tiring, wearing)
2
enervating(trying, exhausting)
2
exacting(adjective, tough, severe, difficult, harsh)
2
forced
2
gargantuan(tough, problematic, trying)
2
grinding(adjective, severe, difficult, harsh, heavy)
2
hairy(adjective, difficult, awkward, demanding, exhausting)
2
hurtful(adjective, painful)
2
inflaming(adjective, painful)
2
insufferable(adjective, painful)
2
messing
2
mushing
2
not easy(expression, idiom, tough, problematic, trying)
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APASmart Define. (2015). grueling thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/grueling/thesaurus/synonyms
ChicagoSmart Define. 2015. "grueling thesaurus" https://smartdefine.org/grueling/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, grueling thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/grueling/thesaurus/synonyms>.
MLASmart Define. "grueling thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/grueling/thesaurus/synonyms>