200 entries under hard topic. ×

7
thick-skinned(noun, adjective, calm, mean)
7
unsentimental(adjective, sound, tough, reasonable)
6
case-hardened(noun, adjective, careless, indifferent)
6
cold(adjective, calm, tough, harsh)
6
hard-nosed(adjective, mean, strong, tough)
6
insensible(adjective, bad, strong, tough)
6
pragmatic(adjective, sound, simple, tough)
6
rough(adjective, person, strong, simple)
6
ruthless(adjective, severe, sharp, rough)
6
stern(adjective, tough, severe, rough)
6
unresponsive(adjective, calm, person, bad)
5
aloof(adjective, calm, indifferent, restrained)
5
down-to-earth(adjective, calm, sound, simple)
5
hard-bitten(adjective, tough, rough, harsh)
5
inhuman(adjective, bad, cold, cruel)
5
merciless(adjective, person, severe, rough)
5
objective(adjective, sound, tough, rational)
5
practical(adjective, calm, sound, tough)
5
unconcerned(adjective, calm, careless, indifferent)
5
unromantic(adjective, sound, reasonable, sensible)
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APASmart Define. (2016). hard-boiled thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hard-boiled/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard-boiled thesaurus" https://smartdefine.org/hard-boiled/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, hard-boiled thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hard-boiled/thesaurus/synonyms>.
MLASmart Define. "hard-boiled thesaurus" 23 March 2016. Web. 28 September 2026. <https://smartdefine.org/hard-boiled/thesaurus/synonyms>