64 entries under hard topic. ×

16
hardened(noun, verb, adjective, set)
8
tough(noun, adjective, strong, careless)
6
callous(noun, adjective, cruel, unfeeling)
6
inured(noun, adjective, careless, indifferent)
5
indurated(verb, adjective, careless, indifferent)
5
seasoned(adjective, unfeeling, unsympathetic, experienced)
4
case-hardened(noun, adjective, careless, indifferent)
4
steeled(noun, verb, adjective, set)
4
thick-skinned(noun, adjective, careless, indifferent)
2
hard-boiled(noun, adjective, careless, indifferent)
2
insensate(noun, adjective, careless, indifferent)
2
insensitive(noun, adjective, careless, indifferent)
2
resistant(adjective, strong, unfeeling, unsympathetic)
2
unfeeling(noun, adjective, careless, indifferent)
1
accustomed(adjective, unfeeling, unsympathetic, hardened)
1
apathetic(adjective, careless, indifferent, cruel)
1
benumbed(adjective, unfeeling, unsympathetic, hardened)
1
blind to(expression, adjective, careless, indifferent)
1
careless(adjective, indifferent, cruel, apathetic)
1
cold(adjective, careless, indifferent, cruel)
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APASmart Define. (2015). toughened thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/toughened/thesaurus/synonyms
ChicagoSmart Define. 2015. "toughened thesaurus" https://smartdefine.org/toughened/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, toughened thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/toughened/thesaurus/synonyms>.
MLASmart Define. "toughened thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/toughened/thesaurus/synonyms>