88 entries under cruel topic. ×

2
barbarous(adjective, mean, severe, harsh)
2
flinty(adjective, close, strong, hard, tough)
2
grinding(adjective, tough, rough, difficult, harsh)
2
implacable(adjective, mean, strong, hard, tough)
2
rugged(adjective, strong, hard, tough, severe)
2
strenuous(adjective, tough, rough, difficult, harsh)
1
arduous(adjective, tough, rough, difficult, harsh)
1
bitter(adjective, strong, hard, tough, harsh)
1
cold-blooded(adjective, tough, harsh, grim)
1
compassionless(adjective, mean, severe, harsh)
1
cutthroat(adjective, mean, severe, harsh)
1
distressing(adjective, tough, severe, rough, difficult)
1
dog-eat-dog(adjective, mean, severe, harsh)
1
effortful(adjective, tough, rough, difficult, harsh)
1
excessive(adjective, harsh, grand, extravagant)
1
fierce(adjective, mean, severe, harsh)
1
firm(adjective, strong, hard, tough, severe)
1
forbidding(adjective, close, strong, hard, tough)
1
gratuitous(adjective, mean, severe, harsh)
1
hard-nosed(adjective, close, strong, hard, tough)
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APASmart Define. (2016). unsparing thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/unsparing/thesaurus/synonyms
ChicagoSmart Define. 2016. "unsparing thesaurus" https://smartdefine.org/unsparing/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, unsparing thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/unsparing/thesaurus/synonyms>.
MLASmart Define. "unsparing thesaurus" 24 March 2016. Web. 1 October 2026. <https://smartdefine.org/unsparing/thesaurus/synonyms>