64 entries under hard topic. ×

1
cold-blooded(adjective, careless, indifferent, cruel)
1
coldhearted(adjective, unfeeling, unsympathetic, hardened)
1
contemptuous(adjective, unfeeling, unsympathetic, hardened)
1
cruel(adjective, careless, indifferent, apathetic)
1
deaf to(expression, adjective, careless, indifferent)
1
disdainful(adjective, unfeeling, unsympathetic, hardened)
1
habituated(adjective, unfeeling, unsympathetic, hardened)
1
hard-as-nails(adjective, unfeeling, unsympathetic, hardened)
1
hard-bitten(adjective, careless, indifferent, cruel)
1
hardhearted(adjective, careless, indifferent, cruel)
1
heartless(adjective, careless, indifferent, cruel)
1
impassive(adjective, careless, indifferent, cruel)
1
impenetrable(adjective, unfeeling, unsympathetic, hardened)
1
impenitent(adjective, careless, indifferent, cruel)
1
impious(adjective, unfeeling, unsympathetic, hardened)
1
inaccessible(adjective, unfeeling, unsympathetic, hardened)
1
indifferent(adjective, careless, cruel, apathetic)
1
inflexible(adjective, careless, indifferent, cruel)
1
insensible(adjective, careless, indifferent, cruel)
1
insentient(adjective, careless, indifferent, cruel)
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APASmart Define. (2015). toughened thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/toughened/thesaurus/synonyms
ChicagoSmart Define. 2015. "toughened thesaurus" https://smartdefine.org/toughened/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, toughened thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/toughened/thesaurus/synonyms>.
MLASmart Define. "toughened thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/toughened/thesaurus/synonyms>