103 entries under cruel topic. ×

1
forbidding(adjective, person, strong, hard, tough)
1
go for broke(expression, adjective, idiom, harsh)
1
hang-tough(adjective, strong, hard, tough, harsh)
1
hang in(expression, adjective, harsh, determined)
1
hard-bitten(adjective, strong, hard, rough, harsh)
1
hardhearted(adjective, hard, severe, harsh, careless)
1
heavy(adjective, strong, hard, tough, severe)
1
impassive(adjective, hard, secure, careless, indifferent)
1
impenitent(adjective, hard, careless, indifferent)
1
insensate(adjective, hard, careless, indifferent)
1
insensible(adjective, strong, hard, tough, careless)
1
insentient(adjective, hard, careless, indifferent)
1
mortal(adjective, harsh, determined, fierce)
1
serious(adjective, strong, hard, tough, severe)
1
soulless(adjective, hard, careless, indifferent)
1
spiritless(adjective, hard, careless, indifferent)
1
stop at nothing(expression, adjective, idiom, harsh)
1
thick-skinned(adjective, mean, hard, careless, indifferent)
1
torpid(adjective, hard, careless, indifferent)
1
toughened(adjective, hard, careless, indifferent)
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APASmart Define. (2016). inflexible thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms
ChicagoSmart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, inflexible thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>.
MLASmart Define. "inflexible thesaurus" 24 March 2016. Web. 1 October 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms>