32 entries under heavy topic. ×

1
irksome(adjective, severe, rough, difficult, offensive)
1
mean(adjective, rough, difficult, cruel)
1
merciless(adjective, tough, severe, rough, difficult)
1
murder(adjective, tough, rough, difficult)
1
scabrous(adjective, tough, rough, difficult)
1
slavish(adjective, tough, rough, difficult)
1
terrible(adjective, tough, rough, difficult)
1
tiring(adjective, tough, severe, rough, difficult)
1
unsparing(adjective, tough, rough, difficult, harsh)
1
uphill battle(expression, adjective, tough, rough, difficult)
0
herculean(adjective, tough, rough, difficult)
0
labored(adjective, tough, rough, difficult)
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APASmart Define. (2015). grinding thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/grinding/thesaurus/synonyms
ChicagoSmart Define. 2015. "grinding thesaurus" https://smartdefine.org/grinding/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, grinding thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/grinding/thesaurus/synonyms>.
MLASmart Define. "grinding thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/grinding/thesaurus/synonyms>