196 entries under tough topic. ×

3
intolerant(adjective, hard, severe, harsh)
3
mulish(adjective, strong, hard, firm)
3
sanguinary(adjective, hard, harsh, violent)
3
unsparing(adjective, mean, strong, hard)
2
abhorrent(adjective, mean, nasty, offensive)
2
burdensome(problematic, trying)
2
distressing(adjective, bad, severe, sad)
2
grievous(adjective, severe, sad, harsh)
2
hard-core(adjective, strong, hard, severe)
2
hardened(adjective, hard, harsh, cruel)
2
onerous(problematic, trying)
2
painful(adjective, sad, harsh, awful)
2
trying(problematic, troublesome)
2
tyrannical(adjective, hard, harsh, cruel)
2
uncompassionate(adjective, animal, mean, hard)
2
unfeeling(adjective, animal, mean, severe)
2
wearisome(problematic, trying)
1
arduous(severe, problematic, weighty, trying)
1
avaricious(adjective, hard, harsh, cruel)
1
by the book(expression, adjective, idiom, strong, hard)
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APASmart Define. (2016). grim thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/grim/thesaurus/synonyms
ChicagoSmart Define. 2016. "grim thesaurus" https://smartdefine.org/grim/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, grim thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/grim/thesaurus/synonyms>.
MLASmart Define. "grim thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/grim/thesaurus/synonyms>