100 entries under hard topic. ×

1
impassive(adjective, careless, indifferent, cruel)
1
impenetrable(adjective, cruel, unfeeling, unsympathetic)
1
impenitent(adjective, careless, indifferent, cruel)
1
impious(adjective, unfeeling, unsympathetic, hardened)
1
implacable(adjective, mean, severe, harsh)
1
inaccessible(adjective, unfeeling, unsympathetic, hardened)
1
inflexible(adjective, severe, harsh, careless)
1
insensible(adjective, mean, harsh, careless)
1
insentient(adjective, careless, indifferent, cruel)
1
insusceptible(adjective, insensitive, unsusceptible)
1
irreverent(adjective, unfeeling, unsympathetic, hardened)
1
obtuse(adjective, indifferent, unfeeling, unsympathetic)
1
prepared(adjective, unfeeling, unsympathetic, hardened)
1
remorseless(adjective, mean, harsh, cold)
1
savage(adjective, mean, harsh, cold)
1
seasoned(adjective, unfeeling, unsympathetic, hardened)
1
soulless(adjective, mean, harsh, careless)
1
spiritless(adjective, careless, indifferent, cruel)
1
stiff(adjective, careless, indifferent, cruel)
1
tactless(adjective, indifferent, unsympathetic, unkind)
10 years ago|6.2k views|share |citing 
APASmart Define. (2016). hardhearted thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/hardhearted/thesaurus/synonyms
ChicagoSmart Define. 2016. "hardhearted thesaurus" https://smartdefine.org/hardhearted/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, hardhearted thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/hardhearted/thesaurus/synonyms>.
MLASmart Define. "hardhearted thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/hardhearted/thesaurus/synonyms>