200 entries under hard topic. ×

3
unidealistic(adjective, sound, simple, tough)
2
adamantine(adjective, strong, tough, sturdy)
2
brutal(adjective, tough, severe, sharp)
2
brutish(adjective, cold, indifferent, unfeeling)
2
cold fish(expression, adjective, calm, mean)
2
exacting(adjective, tough, severe, rough)
2
hard-line(adjective, strong, tough, severe)
2
reasonable(adjective, calm, sound, sensible)
2
rigid(adjective, mean, strong, tough)
2
sane(adjective, sound, reasonable, sensible)
2
savage(adjective, severe, rough, harsh)
2
sensible(adjective, sound, tough, reasonable)
2
shrewd(sound, tough, reasonable, sharp)
2
soulless(adjective, careless, indifferent, cruel)
2
steely(adjective, strong, tough, severe)
2
stubborn(adjective, mean, strong, tough)
2
tough-minded(adjective, sound, realistic, uncompromising)
2
toughened(noun, adjective, careless, indifferent)
2
unyielding(adjective, mean, strong, tough)
1
accustomed(adjective, unfeeling, unsympathetic, hardened)
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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>